1、

Tailor-welded Blank ( TWB) is one of the most important technologies in automobile body manufacture in recent years, whose welding quality and residual stresses and deformation have great effects on the following stamping process and its performance properties.

拼焊板是近年来用于汽车车身制造的一种重要技术,其焊接质量的优劣及残余应力状态与变形的大小对后续的冲压成形工艺和产品的使用性能都有很大影响。

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2、

In order to fulfill the study efficiently, the square box model is applied in the study and the criterion to evaluate the formability of TWB is presented.

为了比较有效地开展研究工作,在模拟试验研究中采用了方盒形件作为研究对象,同时针对拼焊板方盒形件应用了合理的成形性判据。

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3、

The residual-stress was measured by hole-drilling method. At the same time, the angular deformations of TWB were measured. It is shown that the simulation results are in accordance with the experimental results.

利用小孔释放法检测不等厚铝合金激光拼焊板的残余应力,并测量拼焊板的角变形,结果显示模拟值与实测值吻合良好。

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4、

The applications of TWB ( tailor welded blanks) and TRB ( tailor rolling blanks) were focused for auto-lightweight and a few of researching keys of the TRB's applications in auto-body manufacturing were given.

重点介绍了激光拼焊板和柔性轧制技术,着重讨论了连续变截面辊轧板(TRB)在汽车轻量化中的应用,并给出了TRB在车身制造应用中尚需深入研究的重点。

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5、

Therefore, reasonable design of the TWB and the rational choice of the forming process parameters could not only avoid the defects like cracking and wrinkling, but also control the weld-line movement distance and improve the stamping formability of the TWBs.

拼焊板的合理设计以及成形工艺参数的合理选用能够避免折线焊缝拼焊板冲压成形过程中的起皱和拉裂等缺陷,并能控制焊缝的移动量,提高拼焊板的冲压成形性能。

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6、

Then take TWB software package of Synopsys corporation as an example, he discusses how TCAD can be used in the IC new process development. A 700V BCD process design was also given as an example to justify the method that the author has proposed.

以synopsys公司的TWB虚拟FAB系统为例,对TCAD用于新工艺的开发作了探讨,并给出了以此为平台进行700V高压BCD工艺设计的实例。

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8、

The method is often time-consuming and high-cost, but also often makes it difficult to ensure the practicality and reliability of the TWB parts, especially for the design of TWB parts based on side impact safety.

该方法往往耗时长、费用高,还往往难以保证拼焊板零件的实用性和可靠性,特别是对于考虑车辆耐撞性的车身拼焊板零件设计。

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9、

The cup-drawing testing show: the existence of the welded line, which reduce the formability of the TWB. And the anisotropy was very clear around the welded line during the drawing of TWB.

拉深试验表明:焊缝的存在明显降低了拼焊板的整体拉深成形性能,并且在拉深的过程中焊缝处表现出明显的各向异性。

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10、

Method of multiplier penalty function is used to optimize the TWB thin-walled structure and the design approach is presented for lightening the TWB thin-walled components.

利用乘子罚函数方法进行拼焊板薄壁梁优化设计求解并提出了薄壁梁零件的拼焊板轻量化设计方法。

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11、

The welded seam of the TWB jointed by LBW contained large quantity tiny equiaxial crystal and the heat-affected-zone ( HAZ) was not obvious, the columnar crystals and cellular dendrite near the bond line were grown in the orientation of radiation.

激光拼焊板焊缝中心为大量细小的等轴晶;热影响区不明显,在熔合线附近存在少量沿散热方向生长的柱状晶和胞状树枝晶。

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