Analysis of the Forming Process for High-strength Precision Bolts Made of GH4169 Material
This article analyzes the forming process of GH4169 high-strength precision bolts and proposes specific forming techniques.Under the premise of ensuring that the mold,blank,and final rolling temperature meet the design requirements,a double-roll rolling mill is used instead of a single-roll rolling mill for forming.Through finite element simulation calculations,the load reduction and tension change curves of the double-roll rolling mill are obtained,providing a basis for the design of equipment parameters for double-roll extrusion.Research has been conducted on the heat treatment process,and based on the mechanical properties of the alloy,the heating temperature range is determined to be between 375 and 400℃,with a holding time of 2 hours,an annealing temperature of 100 to 110℃,and a holding time of 8 to 10 minutes.This effectively improves the mechanical properties of the material.
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