机械科学与技术2017，Vol.36Issue(3)：391-396,6.DOI:10.13433/j.cnki.1003-8728.2017.0311
错齿BTA钻头刀体扭转强度模拟分析与实验研究
Simulation and Experimental Study on Torsion Strength of Staggered BTA Drill Body
摘要
Abstract
In the light of complexity of BTA drill cutter body structure,processing of drilling not only need to be subjected to massive cutting load,it also demands sufficiently large space for chip removal,so the key to resolve the conflicts between strength and chip removal capacity is to achieve optimization design of BTA drill.Finite element analysis and experiments are applied to study the cutter body strength and stress-strain distribution of the BTA drill,which is for the tube sheets of nuclear power plants under torsion load.And the results show that the root of external insert and transverse reinforcement between the two chip of center cutter body and removal channels,which have a severe stress concentration issue,are its weakness to the existing BTA drill,and torque generated in the experiment parts and simulation results are consistent with each other.So the present results provide the basis for improving design for BTA drill.By optimizing the weak links of the cutter body with shape optimization and topology optimization,cutter body strength and chip removal capacity are optimized,processing efficiency of BTA drill on tube sheets of nuclear power plants are enhanced.关键词
错齿BTA钻头/有限元分析/扭矩实验/拓扑优化/形状优化Key words
BTA drill/finite element analysis/torque experiment/topology optimization/shape optimization分类
矿业与冶金引用本文复制引用
杨翔,郑建明,李旭波,郭便..错齿BTA钻头刀体扭转强度模拟分析与实验研究[J].机械科学与技术,2017,36(3):391-396,6.基金项目
国家科技重大专项(2013ZX04009011)资助 （2013ZX04009011）
