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《Powder Metallurgy Technology》 1993-01
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DISCUSSION ON METHODS FOR EVALUATING SURFACE ROUGHNESS OF P/M PRODUCTS (EXCLUDING CEMENTED CARBIDE AND FILTER)

Ma Huanong(Beijing Research Institute of Powder Metallurgy, Beijing 100075)  
Surface roughness is an important index showing the quality of P/M products(excluding cemented carbide and filter). The present paper gives a special description about how to guantitatively evaluate surface roughness of P/M products with testing head of axe edge form.
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