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Powder Metallurgy (PM) is a technology that produces metallic materials, composite materials, or components by preparing metal/alloy powders and processing them through forming, sintering, and other processes. It integrates material preparation and shaping, widely used in high-end manufacturing, aerospace, electronics, and other fields.
Blend metal powders with non-metallic additives (e.g., carbon, copper for hardness) and lubricants (e.g., zinc stearate for moldability).
Heating in a protective atmosphere (argon, hydrogen) or vacuum to 60-80% of the metal's melting point, bonding particles via atomic diffusion to improve density and strength.
Critical Parameters: Temperature, holding time, and atmosphere control.
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