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  • mechanical design tutor needed, any help?

    hello all

    i am an industrial engineer, currently enrolled in masters program. the problem is i have to enroll in courses that i have no background in, this semester i am enrolled in mechanical system design course. the prof relies on the student's knowledge to understand the basic stress and strength formula for any component like spur gears, journal bearings, shafts and the whole realm of elements, i do not have this background

    i need someone to tutor me in this subject, any help?

    IE Mostafa
    IE Mostafa
    Machine Dynamics & Design Considerations 1

    Mechanical sampling

    Hi everyone! I have a problem and I hope somebody can help me. A biomass-fired power plant needs a mechanical sampling system and they want to integral the auger, sample divider and sample crusher in one device. I found out that Johnson Industries offers an auger sampling system for sampling coal, but it contains a small, horizontal shaft hammer mill and it is not good for crushing high water content and high viscosity biomass. They need an auger sampling system with a vertical shaft hammer mill (0,5 meters rotor diameter and 3300 RPM motor). Also, they need an integral sample divider (2:1 ratio) to divide the extracted material before crushing. A simple drawing would help me a lot if you know how to integral a vertical shaft hammer mill and a 2:1 ratio sample divider. It is just a university assignment!

    hence151
    hence151
    Question & Answers

    Fatigue failure of polymer composites

    I wanted to know how fatigue life for polymer composites is determined? Is it using creep analysis or by any other method.  Thank you.

    Paarth Asthana
    Paarth Asthana
    Question & Answers
  • Quizzes

  • Fit_and_Dimensional_Tolerances

    Fit_and_Dimensional_Tolerances_Mechanical_Engineering_Drawing Source Ashish K Darpe Department of Mechanical Engineering IIT Delhi Thanks to Mr. Ashish K Darpe Regards Saurabh Jain

    saurabhjain
    saurabhjain
    Powerpoint Presentations 7

    introduction to cfd Computational fluid dynamics

    its useful ppt about CFD •Computational fluid dynamics (CFD) is the science of predicting fluid flow, heat transfer, mass transfer, chemical reactions, and related phenomena by solving the mathematical equations which govern these processes using a numerical process.

    pranav lad
    pranav lad
    Powerpoint Presentations 5

    Machine Design II ppt

    Presentation on Design of- Clutch Brake Belts Chain Gears

    saurabhjain
    saurabhjain
    Powerpoint Presentations 5

    Geometric Dimensioning and Tolerancing

    Geometric Dimensioning and Tolerance ppt Five powerpoint presentations

    saurabhjain
    saurabhjain
    Powerpoint Presentations 7

    Metal Forming

    Powerpoint Notes on Metal forming Topic includes— Hot &Cold working
    Forging
    Extrusion
    Rolling
    Drawing

    saurabhjain
    saurabhjain
    Powerpoint Presentations 5

    HVAC Basics

    Basic concepts of air conditioning system

    saurabhjain
    saurabhjain
    Powerpoint Presentations
  • Which of the following impurity in cast iron makes it hard and brittle ?

    You can share the question or answer in poll You can also add comments for explanation

    saurabhjain
    saurabhjain
    Mechanical Engineering Questions 5

    Which type of lubrication system is this?

    Which type of lubrication system is this? please explain 1. You can answer this question 2. You can like the best answer 3. You can share the question...

    saurabhjain
    saurabhjain
    Mechanical Engineering Questions 7

    What is difference between riveted joint and welding joint ??

    What is difference between riveted joint and welding joint ?? 1. You can answer this question 2. You can like the best answer 3. You can share the question...

    saurabhjain
    saurabhjain
    Mechanical Engineering Questions 1
  • 18 Mechanical Properties Which Every Mechanical Engineer Should Know

    Selection of material is an important aspect for manufacturing industries . The quality of product is highly depends upon its material properties. These properties are used to distinguish materials from each other. For Example: A harder material is used to make tools.A ductile material is used to draw wires. So the knowledge of mechanical properties of material is desirable for any mechanical student or for any person belongs to mechanical industries. This post brings top 18 mechanical properties.  Mechanical properties of material: There are mainly two types of materials. First one is metal and other one is non metals. Metals are classified into two types : Ferrous metals and Non-ferrous metals. Ferrous metals mainly consist iron with comparatively small addition of other materials. It includes iron and its alloy such as cast iron, steel, HSS etc. Ferrous metals are widely used in mechanical industries for its various advantages. Nonferrous metals contain little or no iron. It includes aluminum, magnesium, copper, zinc etc. Most Mechanical properties are associated with metals. These are #1. Strength: The ability of material to withstand load without failure is known as strength. If a material can bear more load, it means it has more strength. Strength of any material mainly depends on type of loading and deformation before fracture. According to loading types, strength can be classified into three types. a. Tensile strength: b. Compressive strength: 3. Shear strength: According to the deformation before fracture, strength can be classified into three types. a. Elastic strength: b. Yield strength: c. Ultimate strength: #2. Homogeneity: If a material has same properties throughout its geometry, known as homogeneous material and the property is known as homogeneity. It is an ideal situation but practically no material is homogeneous. #3. Isotropy: A material which has same elastic properties along its all loading direction known as isotropic material. #4. Anisotropy: A material which exhibits different elastic properties in different loading direction known as an-isotropic material. #5. Elasticity: If a material regain its original dimension after removal of load, it is known as elastic material and the property by virtue of which it regains its original shape is known as elasticity. Every material possess some elasticity. It is measure as the ratio of stress to strain under elastic limit. #6. Plasticity: The ability of material to undergo some degree of permanent deformation without failure after removal of load is known as plasticity. This property is used for shaping material by metal working. It is mainly depends on temperature and elastic strength of material. #7. Ductility: Ductility is a property by virtue of which metal can be drawn into wires. It can also define as a property which permits permanent deformation before fracture under tensile loading. The amount of permanent deformation (measure in percentage elongation) decides either the material is ductile or not. Percentage elongation = (Final Gauge Length – Original Gauge Length )*100/ Original Gauge Length If the percentage elongation is greater than 5% in a gauge length 50 mm, the material is ductile and if it less than 5% it is not. #8. Brittleness: Brittleness is a property by virtue of which, a material will fail under loading without significant change in dimension. Glass and cast iron are well known brittle materials. #9. Stiffness: The ability of material to resist elastic deformation or deflection during loading, known as stiffness.  A material which offers small change in dimension during loading is more stiffer. For example steel is stiffer than aluminum. #10. Hardness: The property of a material to resist penetration is known as hardness. It is an ability to resist scratching, abrasion or cutting.  It is also define as an ability to resist fracture under point loading. #11. Toughness: Toughness is defined as an ability to withstand with plastic or elastic deformation without failure. It is defined as the amount of energy absorbed before actual fracture. #12. Malleability: A property by virtue of which a metal can flatten into thin sheets, known  as malleability. It is also define as a property which permits plastic deformation under compression loading. #13. Machinability: A property by virtue of which a material can be cut easily. #14. Damping: The ability of metal to dissipate the energy of vibration or cyclic stress is called damping. Cast iron has good damping property, that’s why most of machines body made by cast iron. #15. Creep: The slow and progressive change in dimension of a material under influence of its safe working stress for long time is known as creep. Creep is mainly depend on time and temperature. The maximum amount of stress under which a material withstand during infinite time is known as creep strength. #16. Resilience: The amount of energy absorb under elastic limit during loading is called resilience. The maximum amount of the energy absorb under elastic limit is called proof resilience.   #17. Fatigue Strength: The failure of a work piece under cyclic load or repeated load below its ultimate limit is known as fatigue. The maximum amount of cyclic load which a work piece can bear for infinite number of cycle is called fatigue strength. Fatigue strength is also depend on work piece shape, geometry, surface finish etc. #18. Embrittlement: The loss of ductility of a metal caused by physical or chemical changes, which make it brittle, is called embrittlement.

    saurabhjain
    saurabhjain
    Material Science

    Types of Welding

    Welding is a process of joining similar and dissimilar metals or other material by application of heat with or without application of pressure and addition of filler material. It is used as permanent fasteners. Welding is essential process of every manufacturing industries.  In fact, the future of any new metal may depend on how far it would lend itself to fabrication by welding.
    The weldability has been defined as the capacity of being welded into inseparable joints having specified properties such as definite weld strength proper structure. The weldability of any metal depends on five major factors. These are melting point, thermal conductivity, thermal expansion, surface condition, and change in microstructure. Types of welding: Basically welding may be classified into three types. 1. Plastic welding: In plastic welding or pressure welding process, the pieces of metal to be joined are heated to a plastic state and then forced together by external pressure. These welding are also known as liquid-solid welding process. This procedure is used in forge welding and resistance welding. 2. Fusion welding: In the fusion welding or no pressure welding process, the material at the joint is heated to a molten state and allowed to solidify. These welding are also known as liquid state welding process. This includes gas welding, arc welding, thermite welding etc. 3. Cold welding: In this welding process, the joints are produced without application of heat, but by applying pressure which results diffusion or inter-surface molecular fusion of the parts to be joined. It is also known as solid state welding process. This process is mainly used for welding nonferrous sheet metal, particularly aluminum and its alloys. This includes ultrasonic welding, friction welding, Explosive welding etc.  4 Main Welding Processes: 1. Arc Welding (Fusion Welding): In this type of welding process, weld metal melted from the edges to be joined and allow to solidifies from the liquid state and usually below the recrystallization temperature without any applied deformation.  Arc welding is most extensively employed method of joining metal parts by fusion. In this welding the arc column is generated between an anode, which is the positive pole of power supply, and the cathode, the negative pole. When these two conductors of an electric circuit are brought together and separated for a small distance such that the current continues to flow through a path of ionized particles called plasma, an electric arc is formed. This ionized gas column acts as a high resistance conductor that enables more ions to flow from the anode to the cathode. Heat is generated as the ions strike the cathode. This heat used as melting of metal to be joined or melting the filler metal which further used as joining material of welding metal. The electrode is either consumable or non-consumable as per welding requirement.  The temperature at the center of the arc being 6000 OC to 7000OC   2. Gas Welding: The gas welding is done by burning of combustible gas with air or oxygen in a concentrated flame of high temperature. As with other welding methods, the purpose of the flame is to heat and melt the parent metal and filler rod of a joint. It can weld most common materials   3. Gas Metal arc welding (MIG): This welding is also known as metal inert gas welding. In this type of welding a metal rod is used as one electrode, while the work being welded is used as another electrode. It is a gas shielded metal arc welding which uses the high heat of an electric arc between a continuously fed, consumable electrode wire and the material to be welded. Metal is transferred through protected arc column to the work. In this process the wire is fed continuously from a reel through a gun to constant surface imparts a current upon the wire. In this welding the welding area is flooded with a gas which will not combine with the metal. The rate of flow gas is sufficient to keep the oxygen of the air away from the hot metal surface while welding is being done. 4. Gas Tungsten Arc Welding (TIG): This welding is also known as tungsten inert gas welding is similar to the MIG in that is uses the gases for shielding. This arc welding process uses the intense heat of an electric arc between a no consumable tungsten electrode and the material to be welded. In this process the electrode is not consumable during welding process and gas is used to protect the weld area form atmospheric air.   

    saurabhjain
    saurabhjain
    Manufacturing Technology 1

    Difference between Hot Working and Cold Working

    They both are the metal forming processes. When plastic deformation of metal is carried out at temperature above the recrystallization temperature the process, the process is known as hot working. If this deformation is done below the recrystallization temperature the process is known as cold working. There are many other differences between these processes which are described as below. Difference between Hot Working and Cold Working: S.No.   Cold working     Hot working   1   It is done at a temperature below the recrystallization temperature.   Hot working is done at a temperature above recrystallization temperature.   2.   It is done below recrystallization temperature so it is accomplished by strain hardening.   Hardening due to plastic deformation is completely eliminated.   3.   Cold working decreases mechanical properties of metal like elongation, reduction of area and impact values.   It increases mechanical properties.   4.   Crystallization does not take place.   Crystallization takes place.   5.   Material is not uniform after this working.   Material is uniform thought.   6.   There is more risk of cracks.   There is less risk of cracks.   7.   Cold working increases ultimate tensile strength, yield point hardness and fatigue strength but decreases resistance to corrosion.   In hot working, ultimate tensile strength, yield point, corrosion resistance are unaffected.   8.   Internal and residual stresses are produced.   Internal and residual stresses are not produced.     9.
    Cold working required more energy for plastic deformation.
    It requires less energy for plastic deformation because at higher temperature metal become more ductile and soft.   10.
    More stress is required.
    Less stress required.   11.
    It does not require pickling because no oxidation of metal takes place.
    Heavy oxidation occurs during hot working so pickling is required to remove oxide.   12.
    Embrittlement does not occur in cold working due to no reaction with oxygen at lower temperature.
    There is chance of embrittlement by oxygen in hot working hence metal working is done at inert atmosphere for reactive metals.

    saurabhjain
    saurabhjain
    Manufacturing Technology 4

    CLASSIFICATION OF FLUIDS

    Ideal fluid: A fluid, which is incompressible and having no viscosity, is known as an ideal fluid. Ideal fluid is only an imaginary fluid as all the fluids, which exist, have some viscosity. Real fluid: A fluid, which possesses viscosity, is known as real fluid. All the fluids, in actual practice, are real fluids. Example : Water, Air etc. Newtonian fluid: A real fluid, in which shear stress in directly proportional to the rate of shear strain or velocity gradient, is known as a Newtonian fluid. Example : Water, Benzine etc. Non Newtonian fluid: A real fluid, in which shear stress in not directly proportional to the rate of shear strain or velocity gradient, is known as a Non Newtonian fluid. Example : Plaster, Slurries, Pastes etc.  Ideal plastic fluid: A fluid, in which shear stress is more than the yield value and shear stress is proportional to the rate of shear strain or velocity gradient, is known as ideal plastic fluid. Incompressible fluid: A fluid, in which the density of fluid does not change which change in external force or pressure, is known as incompressible fluid. All liquid are considered in this category. Compressible fluid: A fluid, in which the density of fluid changes while change in external force or pressure, is known as compressible fluid. All gases are considered in this category. Graphical representation of different fluids: Tabular representation of fluid types: Types of fluid Density Viscosity Ideal fluid Constant Zero Real fluid Variable Non zero Newtonian fluid Constant/ Variable T = u(du/dy) Non Newtonian fluid Constant/ Variable T ≠ u(du/dy) Incompressible fluid Constant Non zero/zero Compressible fluid Variable Non zero/zero CLASSIFICATION OF FLOWS ON THE BASIS OF MACH NUMBER. Incompressible flow-M less than 0.3 Compressible subsonic flow-M between 0.3 and 1 Transonic flow-M ranging between values less than 1 and more than 1 Supersonic flow-M greater than 1 but less than 5 Hypersonic flow - M greater than 5  

    saurabhjain
    saurabhjain
    Fluid Mechanics 1
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  3. Mechanical Interview Questions and Answers 2018 || Topics: Boiler Exceptional Question

    For the job placement in the mechanical engineering private companies, it is very necessary to know about the very important mechanical engineering interview questions and answers. During the interview session, the employer can ask you the mechanical engineering basic questions to examine your knowledge about your subject and sector. If you planning to seat in the job placement, these frequently asked mechanical engineering questions and answers will help you in reply to the employer questions. These mechanical engineering interview questions and answers are meant for the purpose of a job interview and getting an idea of interview question for fresher.

     

    Today we are going to discuss Mechanical Interview Questions and Answers-Topics:  Boiler

    In this video we discuss the following question with answer:

    Question Number 1. What is boiler?

    Question Number 2: What are the boiler mountings?

    Question Number 3. What are boiler accessories?

    Question Number 4. What is circulation ratio of a boiler?

    Question Number 5. What is turn down ratio of boiler?

    Question Number 6. What is foaming of boiler?

    Question Number 7. What is priming of boiler?

    Question Number 8. What is critical point of steam?

    Question Number 9. What is evaporation ratio of Boiler?

    Question Number 10. What is acid due point in boiler?

    Question Number 11. What is gross calorific value and net calorific value of coal?

     

    You will all answer after see this video: https://youtu.be/ANifcZlS9Mg

     

  4. For the job placement in the mechanical engineering private companies, it is very necessary to know about the very important mechanical engineering interview questions and answers. During the interview session, the employer can ask you the mechanical engineering basic questions to examine your knowledge about your subject and sector. If you planning to seat in the job placement, these frequently asked mechanical engineering questions and answers will help you in reply to the employer questions. These mechanical engineering interview questions and answers are meant for the purpose of a job interview and getting an idea of interview question for fresher. Today we are going to discuss Mechanical Interview Questions and Answers-Topics: Boiler In this video we discuss the following question with answer: Question Number 1. What is boiler? Question Number 2: What are the boiler mountings? Question Number 3. What are boiler accessories? Question Number 4. What is circulation ratio of a boiler? Question Number 5. What is turn down ratio of boiler? Question Number 6. What is foaming of boiler? Question Number 7. What is priming of boiler? Question Number 8. What is critical point of steam? Question Number 9. What is evaporation ratio of Boiler? Question Number 10. What is acid due point in boiler? Question Number 11. What is gross calorific value and net calorific value of coal? You will all answer after see this video: https://youtu.be/ANifcZlS9Mg
  5. For the placement in the mechanical engineering companies, it is very necessary to know about the important mechanical engineering interview questions and answers. During the interview, the interviewer can ask you the mechanical engineering technical questions to examine your knowledge about your subject and field. If you planning to seat in the placement, these frequently asked mechanical engineering questions and answers will help you in reply to the interviewer’s questions. These mechanical engineering interview questions and answers are meant for the purpose of a job interview and getting an idea of interview question. Today we are going to discuss top 12 Basic Common Questions Asked in Mechanical Engineering Interview session. Basically this video is helpful for fresh mechanical graduate engineer to help him how to answer common mechanical question that has been asked in interview. A mechanical fresh student gain knowledge about top 12 common mechanical questions. It also helps for fresher mechanical student to take preparation for facing interview. Here we listed some mechanical basic common questions and answer that has been asked in the video: Question Number 1: what is heat treatment and why is it done? Answer: Heat treatment can be defined as a combination of processes or operations in which the heating and cooling of a metal or alloy is done in order to obtain desirable characteristics without changing the compositions. Some of the motives or purpose of heat treatment are as follows: In order to improve the hardness of metals. For the softening of the metal. In order to improve the mach inability of the metal. To change the grain size. To provide better resistance to heat, corrosion, wear etc. Question Number 2: Why do heavy vehicles use diesel engine? Answer: The compression ratio of diesel engine is higher than the petrol engine, the reason for producing higher torque. The efficiency of diesel engine increases with load. Diesel produces slow energy on burning of fuel and the efficiency of the engine increases with load which is why diesel engine is suitable and largely used for heavy vehicles Question Number 3: what are types of heat treatment? Answer: Heat treatment is generally performed in the following ways: Normalizing Annealing Spheroidising Please watch this video till end to get the full questions with answer. Here is the link:
  6. Basically this video is helpful for fresh mechanical graduate engineer to help him how to answer common mechanical question that has been asked in interview. A mechanical fresh student gain knowledge about top 12 common mechanical questions.  It also helps for fresher mechanical student to take preparation for facing interview.

    Here we listed some mechanical basic common questions and answer that has been asked in the video:

    Question Number 1:  what is heat treatment and why is it done?

    Answer: Heat treatment can be defined as a combination of processes or operations in which the heating and cooling of a metal or alloy is done in order to obtain desirable characteristics without changing the compositions. Some of the motives or purpose of heat treatment are as follows:

    In order to improve the hardness of metals.

     For the softening of the metal.

     In order to improve the mach inability of the metal.

     To change the grain size.

    To provide better resistance to heat, corrosion, wear etc.

    Question Number 2:  Why do heavy vehicles use diesel engine?

    Answer: The compression ratio of diesel engine is higher than the petrol engine, the reason for producing higher torque. The efficiency of diesel engine increases with load. Diesel produces slow energy on burning of fuel and the efficiency of the engine increases with load which is why diesel engine is suitable and largely used for heavy vehicles

    Question Number 3: what are types of heat treatment?

    Answer: Heat treatment is generally performed in the following ways:

    Normalizing

    Annealing

    Spheroidising

    Please watch this video till end to get the full questions with answer.

     

    Here is the link: 

     

     

  7. Top 12 Basic Common Questions Asked in Mechanical Engineering Interview 2018 https://youtu.be/AQC2FYSfK8g
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    THIS POWER POINT PRESENTATION CONSIST OF INTRODUCTION OF HEAT TRANSFER
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    Mechanical Engineering Quiz 10
  10. It is possible that I may be able to help you, but again, I may not. Please answer a few questions for me. 1) What college level math courses have you taken? 2) What college level mechanics courses have you taken (statics, dynamics, vibrations, theory of machines, etc)? 3) Where are you located? 4) Are you able to pay for tutoring? DrD
  11. hello all i am an industrial engineer, currently enrolled in masters program. the problem is i have to enroll in courses that i have no background in, this semester i am enrolled in mechanical system design course. the prof relies on the student's knowledge to understand the basic stress and strength formula for any component like spur gears, journal bearings, shafts and the whole realm of elements, i do not have this background i need someone to tutor me in this subject, any help?
  12. hence151

    Mechanical sampling

    Hi everyone! I have a problem and I hope somebody can help me. A biomass-fired power plant needs a mechanical sampling system and they want to integral the auger, sample divider and sample crusher in one device. I found out that Johnson Industries offers an auger sampling system for sampling coal, but it contains a small, horizontal shaft hammer mill and it is not good for crushing high water content and high viscosity biomass. They need an auger sampling system with a vertical shaft hammer mill (0,5 meters rotor diameter and 3300 RPM motor). Also, they need an integral sample divider (2:1 ratio) to divide the extracted material before crushing. A simple drawing would help me a lot if you know how to integral a vertical shaft hammer mill and a 2:1 ratio sample divider. It is just a university assignment!
  13. Paarth Asthana

    Fatigue failure of polymer composites

    I wanted to know how fatigue life for polymer composites is determined? Is it using creep analysis or by any other method. Thank you.
  14. The tolerance in inspection gauge is less than that in workshop gauge. i.e it is more accurate
  15. Earlier
  16. Hello, 5 Types of Allowances in Casting Process You Must Know are as follows. 1.Shrinkage Allowance 2.Machining Allowance 3.Draft Allowance 4.Distortion Allowance 5.Shake Allowance. I have written a brief article on the different types of allowances and if you want to know,just click the below link. https://mechanicalstudents.com/types-of-allowances/ Regards, mechanicalstudents.com
  17. Senthil J Prakash

    GRADUATION PROJECT

    Hi Osman Since you are in final year I assume you know heating, ventilation and air conditioning field inside out. Rather than asking other people for project ideas best thing to do would be ( in my mind) to identify common issues, next technology leap etc by some common research. Search for common issues these units are having to identify a a problem Talk to few suppliers, industrial end users, installing agents etc to identify a common problems Visit unit manufacturers website and read their white papers to identify what they are looking at for the next generation technology leap so on... This way you will find a niche idea or issue to research and do your project. This also will help you to be at the forefront of what the current technology trend. In case if you are successful at solving an issue to come up with a new idea you could start a business providing a solution. good luck Prakash Engineering Product Design
  18. The goal of operations management is to maximize efficiency while producing goods and services that effectively fulfill customer needs. Operations is one of the three strategic functions of any organization.
  19. Kevin Smith

    MULTIPULLEY BELT FORCES

    If a idler pulley is necessary, there are rules as to the diameter that should be used so as not the "break the back" of the belt, I assume you are talking v-belts. Then when tensioning the drive belts your need to apply about a 1% stretch to the cords in the belt, assumption is std belts with polyester cords. If you are thinking to firstly correctly tension the belts, then apply an idler, the whole drive could be over tensioned and damage the shaft and bearings. You have to tension the drive the same as you would with the idler in the system, Both Carlisle Belts and Gates have very good drive design programs for designing and provide tensioning information. This is not a simple procedure and the larger the drive the bigger the loads, also life and efficiency are very important.
  20. Gabriel Menoncin Kracker

    MULTIPULLEY BELT FORCES

    Hi there, I'm new here! I would like to know what are the forces involved in a Multipulley belt system like the one in the Picture 1? We well know the ones involved in a 2 pulley system, but in this case I don't think it is that simple. P.S: Pulley number 3 is fixed, therefore not considered as a tensioner pulley. Thank you very much!
  21. abhijeet chandak

    New automotive materials

    Modern materials for automotive industry. The car industry uses a tremendous number of materials to build cars, including iron, aluminum, steel, glass, rubber, petroleum products, copper, steel and others.
  22. Erica Zhu Feilong Jiangli

    Automobile parts failure

    The failure of automobile parts to lose the functions specified in the original design is called failure. Failure refers not only to the complete loss of original functions, but also to functional degradation and serious damage or hidden dangers, continued use will lose reliability and safety components. According to the failure mode, automobile parts can be divided into five categories: wear, fatigue fracture, deformation, corrosion and aging. A part may have several failure modes or failure mechanisms at the same time. There are many reasons for the failure of parts, which can be divided into three aspects: design and manufacture (unreasonable design, improper material selection, improper manufacturing process operation, etc.), working conditions (including the stress state and working environment of parts), and use and maintenance. Feilong Jiangli auto parts has high quality.
  23. abhijeet chandak

    CAD software for design?

    here we discuss some future trends in CAD CAE training: E-learning If we talk about trends in India, online learning is relatively at its budding stage. Our students and professionals are not well prepared for entirely e- learning, not just CAD but any type of e-learning. and many more
  24. abhijeet chandak

    designing software for mechanical engineer

    Solid Modelling Software: SolidWorks, CATIA, ProE etc. ... Analysis and Simulation: ANSYS, COMSOL, HyperMesh etc. ... Programming Language: C++, JAVA, PYTHON etc. ... MATLAB.
  25. Erica Zhu Feilong Jiangli

    New energy vehicle

    Nowadays, new energy vehicles are favored by people. Many large-scale automobile manufacturers have invested a lot of money in the production of new energy vehicles. According to different driving forms, fuel cell vehicles can be divided into pure fuel cell-driven vehicles and hybrid-driven vehicles. Pure fuel cell vehicles are powered by only one fuel cell, which bears all the power loads of the vehicle. Pure fuel cell vehicles have the problems of high cost and high power, which require high dynamic performance and reliability of fuel cell systems, and may not be able to recover braking energy. Hybrid drive electric vehicle is based on fuel cell, adding a group of batteries or supercapacitors as another power source. Feilong Jiangli is constantly innovating and striving to create customer satisfaction auto parts,such as electronic water pumps, rubber engine mount, oil dipsticks and so on.
  26. Osman Shamat

    GRADUATION PROJECT

    HELLO EVERY ONE I'M AT MY FINAL YEAR AND I'M LOOKING FOR GRADUATION PROJECT IN heating, ventilation, and air conditioning FIELD IF ANY ONE CAN HELP BY A TITLE OR SOME REFERENCES IT WILL BE VERY HELPFUL TO ME THANKS IN ADVANCE
  27. Erica Zhu Feilong Jiangli

    Auto parts process series-Die forging for parts blank

    The forging method of prefabricating the die chamber with the same shape as the forging piece on the high strength metal forging die so that the blank is pressed and deformed in the die chamber. Characteristics and applications of die forging: (1) higher productivity (2) forging size is accurate and machining allowance is small. (3) forging with complicated shape can be forged. (4) material utilization rate is high. It is mainly used for producing complex forging parts in batch and mass production. Die forging equipment According to the use of equipment, die forging can be divided into hammer die forging and press die forging. The former uses a forging press and the latter is a press. The forging technology on the hammer is good. It is a common die forging method. forging die Forging dies are tools for hot forging. The forging die cavity is made into the corresponding shape which is opposite to the required forging, and is properly typed. The forging blank is heated to the recrystallization temperature of the metal and placed on the forging die. Then the blank is forged into a forging with a flying edge or a minimal flying edge by the pressure of the forging equipment.
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