拉延工藝 的英文怎麼說
中文拼音 [lāyángōngyì]
拉延工藝
英文
drawing work-
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。Drawing technique and punching simulation of inside board of veil framework up - transom
汽車面罩骨架上橫梁內板拉延工藝分析及沖壓模擬Study on drawing processes for tailor welded blanks of different thickness
差厚拼焊板拉延成形工藝研究Strain analysis of drawing process
拉延工藝過程的應變分析Manufacturing processes forming under combination of tensile and compressive conditions - part 5 : forming by raising ; classification, subdivision, terms and definitions
拉伸和加壓成形加工工藝.第5部分:凸緣拉延成形.分類The relative density of the sample has reached as high as 97. 4 % of fully dense. the mean micro hardness has reached hv496. 3. the fractography of the fracture section of the tensile sample was characteristic of dimple typically which indicated that the fracture belong to ductile fracture
；試樣相對密度可以達到理論值的97 . 4 ；硬度方面由於激光立體成形工藝的特點，最後幾層的硬度比開始時的高，平均硬度達到了hv496 . 3 ；拉伸試樣的斷口形貌具有典型的韌窩特徵，屬于延性斷裂。The changes of characteristics of material and geometry caused by stamping all influence the precision of cae. in this thesis it also shows that a typical structure and a simplified car model were built using one step forming and mapping method based on vpg and kmas software, thus enabling us to define it fast fine simulation method ( ffs ) ; likewise, the pure static bend test and the front impact test complied with ecer42 were respectively completed
4 .本文首次將快速精細模擬分析（ fastfinesimulation - ffs ）方法應用到車身典型結構件的靜態純彎特性研究，利用kmas軟體進行了該模擬模型一步成型拉延分析，通過試驗和模擬分析結果對比，驗證了拉延工藝對車身結構件力學特性的重要影響。Porous polytetrafluoroethylene ( ptfe ) membranes were prepared from ptfe fine powder by a series of mechenical operations such as extrusion, rolling and stretching
摘要通過擠出、壓延和拉伸工藝制備了聚四氟乙烯微孔膜。Physics capability such as density, conduct and mechanics capability such as tensile strength, hardness and stretch ratio were tested during technical course. photograph analysis and empa analysis were carried out. the influence factor on materials physics and mechanics capability were investigated, which induced by powders synthesis technique, pressure and sinter temperature
在制備銅基復合材料的工藝過程中，對材料進行密度、電導率等物理性能和抗拉強度、布氏硬度、延伸率等力學性能的測試，進行金相分析和empa分析，研究了粉末合成工藝、壓制壓強、燒結溫度等對材料物理、力學性能的影響，探索了材料密度、布氏硬度、電導率、抗拉強度、延伸率等之間的關系。分享友人