Framework for springback compensation based on mechanical factor evaluation

2013 ◽  
Author(s):  
Tetsuo Oya ◽  
Naoyuki Naoyuki Doke
Keyword(s):  
Mechanical Factor ◽  
Springback Compensation ◽  
Factor Evaluation

Research on Springback Compensation of Aluminium Alloy Automobile Body Panel

2013 ◽  
Vol 791-793 ◽  
pp. 390-393
Author(s):  
Lei Hu ◽  
Hui Xie ◽  
Xing Xing Hu ◽  
Zhi Hong Pan ◽  
Hao Ming Jiang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Aluminum Alloy ◽  
Aluminium Alloy ◽  
Curved Surface ◽  
Practical Application ◽  
Springback Compensation ◽  
Cycle Simulation ◽  
Automobile Body ◽  
Compensation Principle ◽  
Working Procedure

The performance of the aluminum alloy makes it the most popular lightweight materials for the automobile manufacturers. However, due to the disparity on the crystal structure,it has the higher springback values compared with steel. In order to solve the problem, we put forward a new springback compensation method based on displacement compensation principle and the principle of curved surface fairing design methods. Though full cycle simulation and calculate springback value for each working procedure, then generate the springback compensation surface. The methods practical application effect is good.

Fano factor evaluation of diamond detectors for alpha particles

2016 ◽  
Vol 213 (10) ◽  
pp. 2629-2633 ◽  
Author(s):  
Takehiro Shimaoka ◽  
Junichi H. Kaneko ◽  
Yuki Sato ◽  
Masakatsu Tsubota ◽  
Hiroaki Shimmyo ◽  
...  
Keyword(s):  
Fano Factor ◽  
Alpha Particles ◽  
Factor Evaluation

scholarly journals Flexible Die Design and Springback Compensation Based on Modified Displacement Adjustment Method

2014 ◽  
Vol 6 ◽  
pp. 131253 ◽  
Author(s):  
Young-Ho Seo ◽  
Ji-Woo Park ◽  
Woo-Jin Song ◽  
Beom-Soo Kang ◽  
Jeong Kim
Keyword(s):  
Closed Loop ◽  
Three Dimensional ◽  
Loop System ◽  
Die Design ◽  
Manufacturing Cost ◽  
Closed Loop System ◽  
Forming Process ◽  
Element Analysis ◽  
Springback Compensation ◽  
Flexible Die

Springback in metal forming process often results in undesirable shape changes in formed parts and leads to deterioration in product quality. Even though springback can be predicted and compensated for through the theories or methodologies established thus far, an increase in manufacturing cost accompanied by a change in die shape is inevitable. In the present paper, it is suggested that the cost accompanied with springback compensation can be minimized while allowing the processing of various three-dimensional curved surfaces by using a flexible die composed of multiple punches. With the die being very flexible, the iterative trial-and-error method can be readily applied to compensate for the springback. Thus, repeated designing and redesigning of solid or matched dies can be avoided, effectively saving considerable time. Only some adjustments of punch height are required. Detailed designs of the flexible die as well as two core algorithms to control the respective punch heights are described in this paper. In addition, a closed-loop system for the springback compensation using the flexible die is proposed. The amount of springback was simulated by a finite element analysis and the modified displacement adjustment (DA) method as the springback compensation model was used in the closed-loop system. This system was applied to a two-dimensional quadratic shape problem, and its robustness was verified by an experiment.

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