??????? FIGURE 1. (a) Density of copper- and iron-powder compacts as a function of compacting pressure; density greatly influences the mechanical and physical properties of PM parts. (b) Effect of density on tensile strength, elongation, and electrical conductivity of copper powder. Source: (a) After F.V. Lenel. (b) After the International A

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Solve the following problem:
(d) ???????

FIGURE 1. (a) Density of copper- and iron-powder compacts as a function of compacting pressure; density greatly influences the mechanical and physical properties of PM parts. (b) Effect of density on tensile strength, elongation, and electrical conductivity of copper powder.
Source: (a) After F.V. Lenel. (b) After the International Annealed Copper Standard (IACS) for electrical conductivity.

=IGURE 2. Final part geometry.

The axisymmetric part shown in Fig. 2 is to be produced from fine copper powder and is to have a tensile strength of 175 MPa. Determine the compacting pressure and initial volume of powder needed. h = 25 mm, R = 25 mm and r = 10 mm.

Solve the following problem: (d) =IGURE 2. Final part geometry.

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