Therefore this work aims to apply the concepts of near-net-shape forging to the forming of hexagonal bolts. FE software DEFORM 3D was utilized to simulate and verify the proposed forming schemes to achieve this end.

因此本研究導(dǎo)入近凈形鍛造的觀念於六角螺栓的成形加工色久韩国无码色视频在线看，以達(dá)到無廢料的理想，並以金屬成形的有限元素DEFORM 3D軟體進(jìn)行模擬一级A片试看片，探討可行之近凈形設(shè)計(jì)日韩高清无码黄色视频。

The influence of expanding-die diameter on the quality of finished products, such as the uniformity of deformation, the contour of a cross section and its ellipticity as well as the wall thickness of finished products, is discussed specially; a conception of relative radius of punch and the design criterion of it are given in this paper.

本文專門論述了機(jī)械擴(kuò)徑模具直徑對成形品質(zhì)的影響，提出了相對凸模半徑的概念一级男女牲交大片，系統(tǒng)分析了它對變形分布我和子的性关系免费观看、成形件輪廓形狀、橢圓度和壁厚的影響日本一片色。

The simulation results show that the forming force will be increased markedly by increasing the diameter of steel billet and the entrance half angle.

模擬計(jì)算表明一本大道久久加勒比香蕉，隨著坯料直徑的增加以及入模半角的增大會(huì)引起成形力顯著提高；此外，鍵齒高度的增加及寬度的減小也會(huì)引起成形力增加自慰福利在线。

The effects of the wheel hub part structure on the metallic deformation flow actions during die forging process were analyzed by using the methods of combining the finite element numerical simulation with the experimental study, and the metalic deformation flow rule during die forging process was revealed.

摘 要：采用有限元模擬和實(shí)驗(yàn)研究相結(jié)合的方法德国三级片网站，分析了模具結(jié)構(gòu)對航空輪轂件模鍛成形過程中金屬變形流動(dòng)行為的影響機(jī)理，揭示成形過程中金屬變形及流動(dòng)的規(guī)律日本天堂网2019。

Because of the unique fitting mode of hydraulic drawing, early wrinkles of conical parts (very likely to wrinkle in ordinary deep drawing) fit orderly to punch under the action of counter pressure as the punch moves down ward, thus wrinkle-free parts can be obtained.

由于充液拉深方法獨(dú)特的貼模方式欧美老熟妇性交杂，使普通拉深方法極易起皺的錐形件成形初期產(chǎn)生的皺隨著凸模向下運(yùn)動(dòng)在對向液壓的作用下順次貼向凸模，從而可以得到無皺的零件国产黄色网站A。

The results show that: the tensile strength, flexural strength and flexural modulus increase by about 10.4%, 62.1% and 122.3% respectively when the mass fraction of the aluminum powder increases from 0 to 50%, while elongation at break and impact strength decrease by about 65.0 and 74.4% respectively; the tensile strength, elongation at break and impact strength all increase with decreasing the particle sizes of the aluminum powders.b Nylon-12 coated metal powders for the indirect SLS process were prepared by the dissolution precipitation process. The coated powders have only 1.0 wt% nylon-12, and their SLS green parts have sufficient strength for features as small as 1.0 mm to be built and post-processed and high dimensional accuracy. The green parts were subjected to the post processing processes including binder decomposition and infiltration of epoxy resin, and then the metal/polymer composite parts with relatively high strength and accuracy were formed.At present, micron-scale inorganic fillers have been widely used to reinforce nylon SLS parts.

將該法制備的尼龍12覆膜金屬粉末用于以下兩個(gè)方面：a使用鋁粉增強(qiáng)尼龍12的SLS成形件欧洲自拍，通過溶劑沉淀法制備尼龍12覆膜鋁復(fù)合粉末，研究了鋁粉含量及粒徑對SLS成形件性能的影響www.szfbsz.com，結(jié)果表明：鋁粉分散均勻精品在线观看播放AV免费，并與基體有良好的界面粘接；當(dāng)鋁粉含量從0增加到50wt％時(shí)无码视频中文字幕一区二区，成形件的拉伸強(qiáng)度欧美女人性生活视频、彎曲強(qiáng)度、彎曲模量分別提高10.4％免费日韩黄黄色片观看品尚网、62.1％和122.3％黄片AAAA，沖擊強(qiáng)度和斷裂伸長率下降65.0％和74.4％，耐熱性及尺寸精度也得到提高国产高清无码网址；斷裂伸長率欧美色色成、沖擊強(qiáng)度及拉伸強(qiáng)度均隨著鋁粉粒徑的減小而增大。b使用溶劑沉淀法制備了間接法SLS用尼龍12覆膜金屬粉末先锋在线资源网站，該覆膜粉末中聚合物粘接劑的含量僅為1.0 wt％26uuu亚洲欧美日韩在线，其SLS初始形坯具有較高的精度以及足夠滿足后處理要求的強(qiáng)度，最小精細(xì)結(jié)構(gòu)的尺寸達(dá)1.0 mm成年人黄片爽爽爽看看看看看看。

In this paper the forming process in the multi-ram forging process of high-pressure tee joint used in power industry and petroleum chemistry industry is introduced.

介紹了采用多向模鍛鍛制動(dòng)力工業(yè)和石化工業(yè)用高壓三通的工藝過程午夜性交影视，通過FEM模擬總結(jié)出高壓三通的基本成形規(guī)律，并揭示了高壓三通多向模鍛過程中水平?jīng)_頭向上翹曲現(xiàn)象及其產(chǎn)生原因免费看一级a片网站，為類似鍛件的多向模鍛工藝的設(shè)計(jì)提供了有益的借鑒黑人国产在线。

A newly developed approach, in which sheet metal forming and plastics injection molding are integrated, was used to manufacture complex components combined with aluminum sheet and polypropylene with the mold of non-flat bottom via plastics injection molding machine.

摘 要：在注塑機(jī)上利用非平底凹模制備了形狀較復(fù)雜的鋁板/聚丙烯復(fù)合結(jié)構(gòu)件，實(shí)現(xiàn)了將金屬板料成形免费黄片子、塑料注射成形融為一體的復(fù)合成形的新工藝黄业网站在线免费观看。

The opposite hydraulic pressure tension is a sheet forming method,using the reverse hydraulic pressure established during the raised mold and sheet enters the concave mold.

對向液壓拉深是在凹模兼液壓室的型腔內(nèi)充滿液體，利用凸模帶動(dòng)板料進(jìn)入凹模后建立的反向液壓而使板料成形的方法成熟老熟妇高潮XXXXX。

In this paper, by using the electromagnetic forming unit developed by ourselves, the influence of various parameters such as the thickness of elastomer, the diameter of the punch, the value of sorap and the installation form of the punch on the minimum discharge energy of blanking were studied on the base of experiments.

本文在自行研制的電磁成形機(jī)上利用試驗(yàn)方法日韩视频05，研究了帶有傳力介質(zhì)的電磁成形落料的傳力介質(zhì)厚度、凸棋直徑欧美老熟妇又粗又大，搭邊值及凸模安裝型式等yy6080新觉伦AA午夜视频伊人，對電磁成形落料最小放電能量的影響欧美黑人做嫒在线视频。