Transactions of Materials and Heat Treatment

Title：Evaluation model on design reasonability for additive manufacturing process of forgings with process boss

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ClassificationCode：TG316

year,vol(issue):pagenumber：2021,46(10):12-18

Abstract：

In order to determine whether the molten pool and heat-affected zone (HAZ) generated by the addictive manufacturing process boss in the pre-forgings of slide rail was forged out of the base part through the final forging, the final forging simulation of the additive manufacturing part for slide rail was conducted to study the material flow at the combination surface between process boss and substrate in the slide rail final forgings, determined the maximum allowable molten pool and the range of HAZ on the slide rail substrate in addictive manufacturing process, and established an interface model that effectively judged the design rationality of substrate morphology, additive morphology and process parameters in forging addictive manufacturing process. Using the interface model to analyze the addictive manufacturing process boss 1 and 2, the results show that the morphology design of the additive manufacturing process boss 1 is reasonable, but the morphology design of the additive manufacturing process boss 2 requires further optimization. However, the relative error in the center area of the interface model is small, but it is easy to be distorted at the boundary. Thus, the relative error of the measurement area is effectively reduced by increasing the area of the interface model or increasing the point density at the boundary.

Funds：

国家重点研发计划(2018YFB1106500)

作者简介：李松林（1997-），男，硕士研究生 E-mail：2326850439@qq.com 通信作者：王梦寒（1975-），女，博士，副教授，博士生导师 E-mail：cquwmh@163.com

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