磨料流加工技术在热流道模具制造中的应用  

Application of Abrasive Flow Machining in Manufacturing of Hot Runner Mold

作　　者：宋桂珍[1] 程建明[1] 李元宗[1] 

机构地区：[1]太原理工大学机械工程学院,山西太原030024

出　　处：《模具制造》2009年第2期91-93,共3页Die & Mould Manufacture

摘　　要：为了解决模具热流道板的超细长流道孔及放射状细长热流道群孔的抛光和交叉孔去毛刺问题,首次将磨料流加工技术用于模具热流道的抛光。通过实例,介绍了加工工艺参数的选择或确定方法,指出了夹具设计要点,用图像比较的方法检测加工表面粗糙度值。实践证明,加工几分钟即可达到技术要求,其优越性在于抛光和去毛刺同时完成,抛光均匀性好、彻底去除了交叉孔的毛刺、加工效率高。该技术的高精度、高效、经济等特点为热流道模具的快速高精度制造提供了强有力的技术支持。To finish the hot runner holes with very large length/diameter ratio or radiate of hot runner mold, the technique named abrasive flow machining （AFM） is first used to finish the hot runner of mold. An application sample is presented. How the technique parameters are selected or determined is introduced. The key of designed fixture is pointed out. The application shows that AFM can reach the technology requirement of the hot runner in a shout time. Finishing and deburring are achieved at one time. The efficient, precise and economical finishing method is an excellence technology to make hot runner mold.

关 键 词：热流道 抛光 模具 磨料流加工 图像比较 表面粗糙度 

分 类 号：TG76[金属学及工艺—刀具与模具]