Transactions of Materials and Heat Treatment

Title：Formation and prevention of gear axes crystal boundary crack

Authors： CHENG Li~1 CHENG Fang~2 (1.Chongqing Heavy-Duty Casting and Forging Plant Chongqing 400083 China 2.Chongqing University of Post and Telecommunications Chongqing 400065 China)

Unit：

KeyWords： gear axle square steel ingot cleavage brittleness cracks in crystal boundary

ClassificationCode：TG316

year,vol(issue):pagenumber：2005,30(5):7-8

Abstract：

Gear axes appears cracks in crystal boundary in forging production.The reasons are found out that the cleavage brittleness is laniated in upset forging and defect is enlarged on the plane anvil forging by analyzing the structure of square steel ingot and forging stress and strain.The octahedron steel ingot and V-anvil forging bar can effectively prevent cracks in crystal boundary.

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Reference：

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