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为了缩短精镗加工时间,减少热变形带来的质量问题,使孔的表面粗糙度稳定在R_a1.6～0.8um范围内,上海沪东造船厂技术人员分析研究,采用宽刀刃高速镗削,使宽刃镗刀片大幅度提高进给量,有效的提高孔表面的质量,在整个精镗过程中减少了刀片实际切削工件的次数,有利于减缓刀刃的磨损。以目前采用的刚性镗刀盘为例,在该盘的180°方向上装有两副径向尺寸可调的刀座和宽刃可转位的精镗刀片。两刀座在轴向相距6mm时,径向
In order to shorten the fine boring processing time and reduce the quality problems caused by thermal deformation, so that the surface roughness of the hole in R_a1.6 ~ 0.8um range, Shanghai Hudong Shipyard technical staff analysis and research, the use of wide-edge high-speed boring, The utility model greatly increases the feed amount of the wide-edge boring blade, effectively improves the quality of the hole surface, reduces the number of actual cutting workpieces during the entire boring process, and helps to reduce the wear of the cutting edge. Taking the rigid boring cutter plate currently used as an example, two diametrically-adjustable cutter holders and a wide-bladed indexable precision boring cutter are mounted in the 180 ° direction of the tray. Two knife seat in the axial distance 6mm, radial