Powder metallurgy is a special manufacturing process widely used in the automobile industry. Let’s look at a previous year question from M.P. Vyapam 09 July 2017 that tests your knowledge on this topic.
In the video, I have explained powder metallurgy, its process, and why certain parts are made using it.
(a) Cams / कैम्स
Powder Metallurgy is a process of making components by compacting fine metal powders into the desired shape and then sintering (heating without melting) them to bond the particles.
Why cams are made from powder metallurgy:
Cams have complex shapes and require precise dimensional accuracy.
Powder metallurgy allows near-net shape production with minimal machining.
Provides good wear resistance and hardness after sintering.
Reduces waste material compared to conventional machining.
Gears
Valve seats
Bushings & bearings
Small sprockets
Exam Tip:
For engine parts with intricate shapes and high wear resistance, powder metallurgy is an ideal manufacturing process.
In competitive exams, if they ask “common engine part from powder metallurgy” → Cams is the most frequent answer.
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