悬空尺寸对高强钢薄壁板钻削力及变形的影响  

The influence of suspended dimensions on drilling force and deformation of high-strength steel thin wall panels

作　　者：张玉璞[1] 李如玉 黄树涛[1] 刘成炜 于晓琳[1] 许立福[1] 孙永社 ZHANG Yupu;LI Ruyu;HUANG Shutao;LIU Chengwei;YU Xiaolin;XU Lifu;SUN Yongshe(Shenyang Ligong University,Shenyang 110159,China;Xi’an Kunlun Industry(Group)Co.,Ltd.,Xi’an 710043,China)

机构地区：[1]沈阳理工大学,沈阳110159 [2]西安昆仑工业(集团)有限责任公司,西安710043

出　　处：《兵器装备工程学报》2025年第2期275-284,共10页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金项目(51775356);沈阳市重点技术攻关“揭榜挂帅”项目。

摘　　要：钻孔是AF1410高强钢薄壁件的重要加工工序,工件悬空尺寸和约束方式直接影响其装夹后的刚度、加工变形和加工精度。本文中采用实验方法研究了AF1410高强钢薄壁板工件悬空尺寸和约束方式对钻孔过程中钻削轴向力及变形的影响。研究结果表明:AF1410高强钢薄壁件在钻削初期,均产生了轴向力呈线性增长的外凸弹性变形,该阶段钻削轴向力主要由工件的弹性变形抗力产生。在四边约束条件下,工件悬空尺寸对钻削初期轴向力线性增大阶段的轴向力最大值影响不大,基本在169~193 N范围变化;钻削初期工件最大弹性凸变形量随着工件悬空尺寸的增加有所增大,最大凸变形量约在0.31~0.54 mm范围;轴向力线性增大速率随工件悬空尺寸的增加而减小,其中同时改变双向尺寸的方形工件较改变单一尺寸的长方形工件的变化要大,最大变化幅度为174.5 N/s;随工件悬空尺寸的增加钻削全过程最大轴向力略有减小;钻孔滞后时间随工件悬空尺寸的增加而增大,最大钻孔滞后时间约1 s,改变单一悬空尺寸的长方形工件对钻孔滞后时间影响较方形工件要小。约束方式对钻削初期轴向力线性变化阶段最大值影响不大;钻削初期轴向力线性增大阶段工件最大凸变形量总体上随着约束刚度的加强而减小,2短边约束时工件凸变形量最大为0.61 mm,4边约束时工件凸变形量最小为0.36 mm;轴向力线性增大速率随约束刚度的加强而有所增大;钻孔滞后时间总体上随约束刚度的加强而减小,变化幅度在0.24~0.51 s之间。Drilling is an important machining process for AF1410 high-strength steel thin-walled parts,and the hanging size and constraint method of the workpiece directly affect its stiffness,machining deformation,and machining accuracy after clamping.This article uses experimental methods to study the influence of the suspended size and constraint method of AF1410 high-strength steel thin wall panel workpiece on the axial force and deformation during drilling process.The research results indicate that during the initial drilling stage of AF1410 high-strength steel thin-walled parts,an outward convex elastic deformation with linear increase in axial force is generated,and the axial force during drilling is mainly generated by the elastic deformation resistance of the workpiece.Under the four-sided constraint conditions,the suspended size of the workpiece has little effect on the maximum axial force during the linear increase stage of the initial axial force during drilling;The basic range of variation is between 169 N and 193 N;In the initial stage of drilling,the maximum elastic convex deformation of the workpiece increases with the increase of the suspended size of the workpiece,and the maximum convex deformation is about 0.31~0.54 mm;the linear increase rate of axial force decreases with the increase of the suspended size of the workpiece.Among them,square workpieces that change both directions at the same time have greater changes than rectangular workpieces that change a single size;with a maximum change amplitude of 174.5 N/s.As the suspended size of the workpiece increases,the maximum axial force during the entire drilling process slightly decreases,and the drilling lag time increases with the increase of the suspended size of the square workpiece,and the maximum drilling delay time is about 1 second.The effect of changing the single hanging size of a rectangular workpiece on the drilling lag time is smaller than that of a square workpiece.The constraint method has little effect on the maximum value of the linear ch

关 键 词：AF1410高强钢 薄壁件 钻削 工件尺寸 约束方式 轴向力 

分 类 号：TJ05[兵器科学与技术—兵器发射理论与技术] TG506[金属学及工艺—金属切削加工及机床]