摘要
超硬磨料磨具以其优异的磨削性能获得机械加工领域普遍认可,但制约其进一步拓展应用的主要原因之一是超硬砂轮修整极其困难。面对此难题,作者梳理目前超硬砂轮在工程应用中的主要修整方法,分析其工作原理、技术演变、主要特点、应用状况,对先进修整技术进行阐述,最后总结并展望三大结合剂超硬砂轮实用修整技术及发展趋势。金属结合剂超硬砂轮大余量去除基本锁定为电火花放电修整,小余量修整主要以普通磨具磨削法修整为主,细粒度超硬砂轮采用在线电解修整优势明显;陶瓷结合剂超硬砂轮简单直线修整逐渐被点轮修整取代,高陡度成型砂轮修整仍是金刚石滚轮;树脂结合剂超硬砂轮多以磨削法修整为主,但科学实用修整技术仍需进一步研发。激光修整具有非接触、高效、便利、易控、超长寿命等优点,具有更加广阔的发展前景;集机、电、声、热、化等多种方法于一体的复合修整也是超硬砂轮技术人员一直关注和研发的重点。
Superhard abrasive tools have been widely recognized in the field of mechanical processing for their excellent grinding performance,but one of the main reasons restricting their further development and application is the extremely difficult dressing of superhard grinding wheels.To solve the problem,this paper combs the main dressing methods in the application of superhard grinding wheel at present,and analyzes the working principle,technical evolution,main characteristics and application status.The advanced dressing technology is expounded.Finally,the practical dressing technology and development trend of three binders for superhard grinding wheel are summarized and prospected.The large margin removal of metal bond superhard grinding wheel is basically locked in the electric spark discharge dressing,the small margin dressing is mainly the common grinding tool grinding method,the fine grain superhard grinding wheel has the advantage of on-line electrolytic dressing.The simple straight-line dressing of ceramic bond superhard grinding wheel will gradually be replaced by point wheel dressing,and the dressing of high steepness molding grinding wheel will still be occupied by diamond roller.Resin-bonded superhard grinding wheel is mainly used for grinding dressing,but the scientific and practical dressing technology will be the main direction for further research and development in the future.Laser dressing has the advantages of non-contact,high efficiency,convenience,easy control and long life,etc.The combination dressing that integrates machine,electricity,sound,heat and chemical methods is also the focus of attention.
作者
冯克明
赵金坠
邢波
FENG Kerning;ZHAO Jinzhui;SXING Bo(Zhengzhou Research Institute for Abrasive & Grinding Co.,Ltd,Zhengzhou 450001,China;National Quality Supervision & Inspection Center for Abrasives,Zhengzhou 450001,China)
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2019年第2期115-121,共7页
Ordnance Material Science and Engineering
基金
国家自然科学基金(U1604254)
国家科技支撑计划资助项目(2015BAF31B00)
关键词
超硬磨料砂轮
修整技术
综述
展望
superhard abrasive grinding wheel
dressing technology
review
prospect
