The part shown in Figure is to be pressed from fine copper powders using a compaction pressure of 1000 MPa. Dimensions are milimetres. Determine a) the required press tonnage to perform this operation b) the final weight of the part if the porosity is 15%. Assume shrinkage during sintering can be neglected. (the desity of copper =8,97g/cm3 )

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Q: 8) In powder metallurgy operation, sintering of components

A: Reduced brittleness and improves strength.

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Processing of Plastic Materials

Plastic material is a human-made (synthetic material) in the solid-state at normal (room) temperature and does not occur naturally. It is also referred to as polymers and allows temporary and permanent change in the form without deteriorating its coherence with the help of pressure/heat or both. Plastic material is an organic material that has a low weight to strength ratio.