热熔自攻丝工艺参数对板件连接质量的影响  

Influence of Flow Drill Screwdriving Process Parameters on the Quality of Plate Connection

作　　者：林巨广[1] 何松健 申仲达 赖逸彦 LIN Juguang;HE Songjian;SHEN Zhongda;LAI Yiyan(School of Mechanical Engineering,Hefei University of Technology,Hefei Anhui 230009,China;Intelligent Manufacturing Institute,Hefei University of Technology,Hefei Anhui 230009,China)

机构地区：[1]合肥工业大学机械工程学院,安徽合肥230009 [2]合肥工业大学智能制造技术研究院,安徽合肥230009

出　　处：《机床与液压》2018年第19期15-18,共4页Machine Tool & Hydraulics

基　　金：国家科技支撑计划项目(2012BAF06B01);国家智能制造装备发展专项项目(发改办高技[2011] 2548号)

摘　　要：阐述了热熔自攻丝技术的概念、使用紧固件特点以及工艺过程。对热熔自攻丝技术来说,连接点处板件的间隙、紧固件落座、底部接头状态及断面质量都是对其接头质量的评判依据,其工艺参数选取对连接件的性能影响很大。通过试验研究了FDS枪打孔阶段的轴向下压力和拧紧阶段目标扭矩对板件连接质量的影响。采用控制变量法进行实验,检测出各状态下的板间间隙、底部成型和断面情况,试验结果表明:在相同扭矩下,轴向下压力为1. 1 k N时连接效果好;目标扭矩为12 N·m时板间间隙为0,在不出现滑牙情况下,增加目标扭矩会使连接质量提高。The concept of Flow Drill Screwdriving(FDS)technology,fastener feature in application and process chain is introduced.For technological FDS,the gap between the connection points,fastening seated,bottom joint state and cross section quality were judged on basis of its joint quality,in addition,the selection of process parameters had a great influence on the performance of the connector,the influence of the FDS gun axial pressure in the punching stage and the target torque in the tightening stage on plate connection quality was studied by experimental method.By controlling variable method for experiments,the clearance between each state plate,bottom side forming and cross section were detected.The experimental results show that under the same torque,the FDS quality is good when the axial pressure was 1.1 kN.The plate gap is 0 when the target torque was 12 N·m,without screw loose,the higher the target torque,the higher is the joint quality.

关 键 词：热熔自攻丝 紧固件 工艺过程 评判依据 轴向下压力 目标扭矩 

分 类 号：TG376.3[金属学及工艺—金属压力加工]