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方钢锻造磨球模具设计原则及应用
英文标题:Design principle and application of forging grinding ball mold with square steel
作者:闫红艳 陈燕妮 
单位:北京机电研究所有限公司 四川鸿舰重型机械有限责任公司 
关键词:方钢 磨球 锻造 模具设计 锻圆棒 锻球 
分类号:TG316.3
出版年,卷(期):页码:2020,45(10):142-150
摘要:

 以方钢为坯料的磨球锻造工艺流程为主线,说明了锻圆棒和锻球两个工序中的锻件特点和模具型腔的设计原则。在锻圆棒工序中,分析了方钢锻圆棒的工艺特点、材料流动规律和锻件形状特点,以及模具的等效应力分布及失效位置等,对比了正圆形与椭球形型腔的锻件形状,总结了锻圆棒模具型腔的两个关键设计原则,并给出相应的模具型腔尺寸范围。在圆棒锻球工序中,分析了圆棒锻球的工艺特点、材料流动规律和锻件形状特点,以及模具的等效应力分布及失效位置等,总结了锻球模具型腔的两个关键设计原则,并给出锻球模具型腔尺寸的设计范围。强调了异形坯料的横截面和体积必须与相应的模具型腔尺寸匹配的原则,列举了锻件尺寸与型腔不匹配时的锻件状态。最后,补充了模具和坯料在使用中需要注意的一些问题。所提出的模具设计原则可应用于人工操作和自动化生产线。

 For the grinding ball forging process with square steel blank, the characteristics of forgings and the design principles of mold cavity in the two processes of forging round bar and forging ball were explained. In the process of forging round bar, the process characteristics of forging round bar, the material flow law, the shape characteristics of forgings and the equivalent stress distribution and failure position of mold were analyzed. Then, two key design principles of mold cavity for forging round bar were summarized by comparing the forging shapes of normal circular cavity and ellipsoidal cavity, and the corresponding size range of mold cavity was given. Furthermore, in the process of forging ball with round bar, the process characteristics, the material flow law, the forging shape characteristics and the equivalent stress distribution and failure position of mold were analyzed, two key design principles of mold cavity for forging ball were summarized, and the design scope of mold cavity size for forging ball was given. In addition, the principle that the cross section and volume of special-shaped blank must be matched with the corresponding mold cavity sizes was emphasized, and the forging states that the forging sizes did not match with the cavity were enumerated. Finally, some problems that need to be paid attention to in the use of mold and blank were added, and the principle of mold design was applied to manual operation and automatic production line.

 
基金项目:
先进成形与焊接共性关键技术创新能力平台建设(2018ZX04044001)
作者简介:
闫红艳(1979-),女,硕士,高工 E-mail:yanhongyan2013@126.com
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