欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用数值模拟和试验的方法，对厚度组合为1．2mm／0．8mm的激光拼焊板进行拉延切边工艺分析，重点就压边力大小、摩擦因数、凹模圆角等参数对回弹的影响进行研究，测量各工艺参数下拼焊板拉延切边的凸凹模圆角处的回弹角、总的回弹角和侧壁曲率，还测量出拼焊板成形中的焊缝移动和应力分布情况和分析相互联系，并与拼焊板拉延弯曲回弹进行比较。分析认为，与拉延弯曲回弹相似，压边力、摩擦因数、凹模圆角等工艺参数对拼焊板拉延切边回弹有着明显的影响，而压边力是关键因素；拼焊板拉延切边回弹和拉弯回弹都与焊缝移动有密切的关系，控制焊缝移动将有利于回弹的降低；相比之下，拼焊板拉延切边回弹比拉弯回弹要小。
英文摘要：
By the numerical simulation and experiments, the process analysis of draw-bending and draw-trimming of the tailor-welded blanks （TWBs） with the thickness ratio1.2 mm/0.8 mm are made, in which the effect of the blank holder force （BHF）, friction factor and die profile radius, etc. on the springback are mainly investigated. The TWBs＇ springback angle in the comer of ptmch and die, the total springback angle and the sidewall curvature are surveyed in draw-bending and draw-trimming. And the welded line movement, the stress distribution in TWBs forming and their interact relationship are analyzed. The TWBs＇ springback in draw-bending and draw-trimming are badly influenced by the BHF, friction factor, die profile radius etc., in which the BHF is the key factor; there is an intimate relationship between TWBs＇ draw-bending springback / draw-trimming springback and welded-line movement, by which it will be advantageous to reduce the TWBs＇ springback through controlling the welded-line movement. In comparison, the TWBs＇ draw-trimming springback is smaller than the TWBs＇ draw-bending springback, so it is better to use draw-trimming process for controlling TWBs＇ springback and improving the shape precision of TWBs＇ forming.
同期刊论文项目
同项目期刊论文
Effects of multiple laser shock processing (LSP) impacts on mechanical properties and wear behaviors
Effects of laser shock processing on 00Cr12 mechanical properties in the temperature range from 25 &
Microstructure and tensile properties of the sub-micro and nano-structured Al produced by laser surf
Effects of laser shock processing on stress corrosion cracking susceptibility of AZ31B magnesium all
Microstructure and wear resistance enhancement of cast steel rolls by laser surface alloying NiCr-Cr
The microstructural mechanism for mechanical property of LY2 aluminum alloy after laser shock proces
Real time NDE of laser shock processing with time-of-flight of laser induced plasma shock wave in ai
Effects of laser shock processing on mechanical properties and micro-structure of ANSI 304 austeniti
Mechanical properties and residual stresses changing on 00Cr12 alloy by nanoseconds laser shock proc
Effects of processing parameters on fatigue properties of LY2 Al alloy subjected to laser shock proc
Micro-structural strengthening mechanism of multiple laser shock processing impacts on AISI 8620 ste
Simulation, analysis, and validation of the residual stresses on LY2 aluminum alloy by laser shock p
Effects of different shocked paths on fatigue property of 7050-T7451 aluminum alloy during two-sided
Comparison of the simulation and experimental fatigue crack behaviors in the nanoseconds laser shock
Effect of laser shock processing on the fatigue crack initiation and propagation of 7050-T7451 alumi
Effects of laser shock processing with different shocked paths on mechanical properties of laser wel
Microstructure and corrosion behavior of the AISI 304 stainless steel after Nd:YAG pulsed laser surf
Effect of laser shock processing on the mechanical properties and fatigue lives of the turbojet engi
Mechanical Properties and Microstructure of Bionic Non-Smooth Stainless Steel Surface by Laser Multi
Influence of compressive stress on stress intensity factor of hole-edge crack by high strain rate la
期刊信息
位置：