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[[File:Powder Presses_1.jpg|thumb|200px|right|Powder Presses]] | |||
'''Powder Presses''' is the process of blending fine powdered materials, pressing them into a desired shape or form (compacting), and then heating the compressed material in a controlled atmosphere to bond the material (sintering). The powder metallurgy process generally consists of four basic steps: | |||
(1) powder manufacture, | |||
(2) powder blending, | |||
(3) compacting, | |||
(4) sintering. | |||
Compacting is generally performed at room temperature, and the elevated-temperature process of sintering is usually conducted at atmospheric pressure. Optional secondary processing often follows to obtain special properties or enhanced precision. | |||
Powder presses can be equipped with cross pressing unit, multiplaten die-set and linear handling system or robot. The SPC quality control allows to control the compacts according to position, force and weight. | |||
==Common Types and Features== | |||
===Hydraulic Powder Presses=== | |||
*Withdrawal principle | |||
*Ejection principle | |||
*Multiplaten die-set | |||
*Cross pressing | |||
===Mechanical Powder Presses=== | |||
*Three-level programming (PRP, CAP and FRP) | |||
*Powder transfer with closed loop top punch hold down | |||
*Compensation of punch deflection | |||
*Automatic filling height correction | |||
*Contour filling | |||
==Video== | |||
<youtube>qWDLtU4bJUA</youtube> | |||