成形模

Firstly in this paper human mandibula was scanned by spiral CT. Then the data from CT was import into software (MIMICS 7.10) to reconstruct 3-D digital model. Software (Surfacer 10.5) was used to remove useless points , smooth the curves and output the STL file. The file was input into the rapid prototyping system, and was converted to slice format.

本研究首先用螺旋CT扫描离体人下颌骨，得到断层图像数据不经任何转换直接输入MIMICS软件进行三维重建，得到CAD三维数模，输入Surfacer软件除去杂点干扰，平滑曲面后，保存为STL文件，输入SLS快速成形系统通过激光烧结精铸蜡粉所制作的人下颌骨复制体，其形态、大小及结构与下颌骨实体标本基本一致。

In order to optimize the technology of press and lower the production cost,a two-stage floating elastic pressing structure at the anvil swage of the second punching die was adopted.

为优化冲压工艺，降低生产成本，第2副冲模采用了下模部分二级浮动弹压的结构，成功实现局部胀拉和翻边工艺以及压凸、弯曲、整形多道工序一次成形。

Gear axle to the shape of the craft and die design process works is first semifinished materials to forging temperature after heating system unburnt earthenware into account the type described in a certain temperature conditions, the need to blank out preheat, heating, thermal insulation; Use Moduan processes.

齿轮轴的成形工艺及模具设计的工艺工程是，先把坯料加热到锻造温度后再放入到制坯型腔内，在一定温度条件下，需要对毛坯进行预热、加热、保温处理；采用模锻工艺。

The alternant impact of high temperature and high stress on local region of the cavity is one of the main reasons causing die failure.

在叶片成形过程中，模腔局部高温和高应力的共同作用是造成模具过早失效的重要原因之一。

With unique thermal property attributes, the interpolymer product is useful, for example, for impact, bitumen and asphalt modification, adhesives, dispersions or latexes and fabricated articles such as, but not limited to, foams, films, sheet, moldings, thermoforms, profiles and fibers.

由于其独特的热性质，该共聚体产生能用于，例如，抗冲材料、沥青及柏油的改性、粘合剂、分散液或胶乳及制备物件，比如，泡沫材料、膜、片材、模制品、热成形材料、型材及纤维，但不限于此。

The results of trial manufacturing and product detection indicate that employing a die forging-drawing process to form the monobloc break beam frame is feasible.

生产试制及产品检验表明，采用&模锻－拉制&工艺成形整体结构的新型制动梁架是可行的。

In practical application of rapid manufacturing of complicated casting, the advantages of easy obtaining molding material, short period manufacturing, low cost, the good quality casting are showed in patternless casting manufacturing and especial the promptitude virtue are full showed.

在复杂铸件快速制造的实际应用中，无模铸型制造技术表现出造型材料易得、制造时间短、制造成本低、铸件质量好等优点，体现了快速敏捷制造的优势，也为快速成形技术在铸造中的应用开辟了一个新领域。

According to the developing tendency all over the world,the paper introduces the theory of laser forming and the and development in rapid metal tooling,forming,boring,incising,et al,points out the significance and the value of laser in the field of plastic forming .

结合国内外的发展动态，简述了激光加工原理，介绍了激光在快速制模、成形、打孔、切割及模具表面强化等方面的应用现状，并强调指出了激光在塑性加工领域中应用的重大意义和价值。

It is also studied how the axial relative position in the process of drawing affects the finished quality of rifled tubes.

本文还研究了在拉拔过程中芯棒和凹模的轴向相对位置对内螺纹管成形质量的影响规律。

3D-CTM (Coupled Thermo-Mechanical Forming Simulation) software for precision forging process of aero-engine blade was developed. The key technologies of 3D coupled rigid-viscoplastic thermo-mechanical FEM simulation of blade forging process were studied systematically. By using the remeshing method of contracting from the boundary to the inner, new mesh system from old distorted mesh system can be obtained. A method of modifying the position of nodes touching on the die according to its original normal was proposed to avoid "dead lock" problem due to uncontinuity of normal of scatted die meshes. The pseudo-static iterative algorithm was used to simplify the coupled thermo-mechanical computation. In particular, formulations to determine relaxation factor β was established for rigid viscoplastic FEM adopting penalty function method, and an improved cubic factor rapid algorithm derived from these formulations was proposed by combining with the advantage of advance and retreat search method.

采用基于边界构形的内缩法，实现了三维畸变网格的重新划分；提出了初矢修正法对触模节点的位置进行修正，解决了由于离散的模具网格的法矢不连续造成的&死锁&问题；采用准静态迭代法简化了速度场和温度场耦合计算过程；特别是针对减速因子β的选取，建立了适用于三维复杂成形过程刚粘塑性罚函数法有限元三次因子法的计算公式，并结合进退搜索法提出了改进的三次因子快速算法，提高了模拟计算效率和稳定性，在此基础之上，开发了面向叶片精锻过程的三维刚粘塑性热力耦合有限元模拟分析系统(3D-CTM)，系统的可靠性得到了圆柱体镦粗的验证。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。