Machining of tungsten powder compacts

Conclusions

• 1. A study was made of the possibility of reusing for subsequent pressing tungsten powder removed by machining from compacts before sintering.

• 2. The machining of compacts has simplified equipment, increased the coefficient of utilization of tungsten powder from 0.05-0.4 to 0.5–0.7, improved the quality of sintered parts, and reduced the blank sintering and impregnation times.

• 3. The introduction of machining at only three plants producing tungsten parts has saved about 40 tons of tungsten powder and 4 tons of copper, resulting in an overall annual saving of more than 500,000 rubles.