辊环开槽专用金刚石砂轮精密成形修整研究  

Study on Precision Shaping and Dressing of Diamond Grinding Wheel for Grooving of Roll Ring

作　　者：沈斌[1] 沈文达 SHEN Bin;SHEN Wenda(Jiangsu Union Technical Institute Suzhou Branche,Suzhou Higher Vocational School,Suzhou 215000,China;Suzhou Xinda High-tech Application Research Institute,Suzhou 215000,China)

机构地区：[1]苏州高等职业技术学校,江苏联合职业技术学院苏州分院,江苏苏州215000 [2]苏州新达高新技术应用研究所,江苏苏州215000

出　　处：《电加工与模具》2023年第S01期20-24,31,共6页Electromachining & Mould

摘　　要：分析了钢厂硬质合金辊环开槽的金刚石砂轮成型修整的各种方法,设计及开发了金属结合剂金刚石砂轮电火花成形修整机床,改进与创新了专用脉冲电源,讨论了精密成形修整中的关键要素,提出一种以大电流加工来解决高效修整、配备叠加包络高压方波,应对难修的特殊配方。新的电火花磨削工艺是采用粗加工的大电流、狭脉宽、高频率,成倍地提高生产率,用中、精加工规准确保精密成形,解决了小R半圆加工后两侧偏“瘦”的工艺问题,最后用磨成的辊环槽型精度完成对成形砂轮精度的认证。Various methods of shaping and dressing of diamond grinding wheel with grooving of carbide roller ring in steel mill were analyzed.The EDM shaping and dressing machine of diamond grinding wheel with metal bond was designed and developed.The special pulse power supply was improved and innovated.The key factors of precision molding dressing were discussed,and a special formula of high efficiency dressing with high current machining and superimposed high voltage square wave was put forward to deal with difficult repair.By the new type of EDM grinding technology,The productivity is doubled by using large current,narrow pulse width and high frequency of rough machining,and the precision forming is ensured by using medium and fine machining gauge.The process problem that the two sides of the small R semicircle are"thin"after machining is solved.The accuracy of formed grinding wheel is verified by the accuracy of the roll ring groove.

关 键 词：电火花磨削 辊环开槽 金刚石砂轮 精密成形 高效修整 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]