凹形車 的英文怎麼說
中文拼音 [āoxíngjū]
凹形車
英文
saddle bottomed wagon-
This paper referred to the massive domestic and foreign technical material, elaborated in the sheet forming value simulation theory essential technology in detail, points out when analysis sheet forming question should use the big distortion ball plasticity fem and introduce the application characteristic and the function summarizes of the sheet forming simulation software dynaform. secondly, analyzed the cover forming characteristic, simultaneously introduced the influence cover forming factor in detail : such as ramming direction, the craft addendum surface and the material pressing surface, the radius of convex - concave mold, draw bead, pressure strength, blank size and craft margin and so on. and simulates many typical automobiles cover panel with software : such lateral board, back taillight pedestal and storage cover
其次，分析了覆蓋件成形的特點和要求，同時詳細介紹了影響覆蓋件成形的因素如沖壓方向、工藝補充面和壓料面、凸凹模圓角、拉延筋、壓邊力、坯料尺寸和工藝切口等，並用數值模擬軟體對多個典型的汽車覆蓋件汽車后側圍板、后燈座以及轎車后備箱蓋的沖壓成形情況進行模擬，用模擬結果優化拉延工藝方案，比較了內覆蓋件和外覆蓋件在成形特點和要求的一些異同點，以及常見的起皺、拉裂和回彈、成形不足等缺陷的產生機理和相應對策，重點介紹工藝補充面和壓料面的設計及優化方法，因為拉延是沖壓工藝的關鍵工序，而工藝補充面和壓料面的設計是拉延工序的關鍵，對消除缺陷至關重要。In fact, it can be used without painting the bare metal because it does not rust or corrode like steel frames or aluminum exposed to rock salt. this means you never have to worry about your titanium frame falling apart due to exposure to the weather. the ti 3 - 2. 5 tubing is the high strength material used in the most advanced aerospace applications
鈦合金具有極好的抗腐蝕性能，事實上，作為自行車架的使用，它的表面不需要塗漆保護，因為它不會象鐵和鋁車架那樣生銹或腐蝕，並耐酸雨紫外線潮濕等的侵蝕，所以你不必擔心其金屬表面會因裸露在空氣中形成凹陷銹蝕。The laws of geometric perspective guarantee that in a concave - mirror projection of a symmetric chandelier onto van eyck ' s support all parallel lines would meet at a vanishing point, just as the image of train track rails meet on the horizon in a photograph
幾何透視定理保證，形狀對稱工整的吊燈經過凹面鏡投射到范艾克的屏臺時，所有平行線會在消逝點上交會，就好像照片上的火車鐵軌會在地平線上交會。
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