能成形性

In the hydraulic counter pressure drawing,with a blank being pushed to a punch surface formed by higher fluid pressure,a good die fittingness of shells and a high accuracy of its inner diameter can be obtained.

充液拉深成形中，由于高压液体紧紧将毛坯贴向凸模表面，因而零件具有良好的贴模性并能获得很高的内径精度。

And there are no significant differences between the two sites. The human preadipocye is composited with scaffold material, and then it implants in nude mice subcutaneously. The new fat tissue also can be observed, but it is sheet, not lumpish or hemispheroidal. We still do more research in the field of growth and control of cell, screening better scaffole material in future study.

两个部位无显著性差异，将人的前体脂肪细胞与支架材料复合后接种裸鼠皮下，也能形成新脂肪组织，但为片状，不能形成团块状或半球状，今后还将对细胞的生长调控、更好的筛选成形支架材料等进行深入研究。

The result shows that the cruciform specimen with square thinning center region is the superior device for the investigation of forming limit stress diagram to obtain the more homogeneous stress distribution in the center region, to realize the large deformation and the fracture appears in the center region more easily, and to control the stress concentration preferably.

结果表明，中心区方形减薄的十字形试件有更好的中心区应力分布均匀性，更容易实现大变形以致破裂发生在中心区，能较好地控制应力集中，是更适用于板料成形极限应力图研究的实验装备。

Based on the relevant movement between hard shaper cutter and grinding wheel, the movements of grinding wheel are studied. The shaping grinding point and the shaping grinding edge are made up with. In order to easily compare when shaping errors and cutting edge"s angles are the most excellent, uniform expressions for convex curved rake face of hard shaping cutter and spatial cutting edge curve are separately developed. The distributions of new profiling cutter"s shaping errors and cutting edges angles are analyzed. The relevant grinding wheel and cam are designed. Due to this paper, a new profiling hard shaping cutter has been manufactured successfully. At last experiments are made to test the performance of hard shaping cutter and all kinds of precision of hard gear.

本文直接从插齿刀与砂轮之间的相对运动关系出发，单独研究砂轮的运动，提出砂轮成形磨削点和砂轮成形磨削刃的概念；分别建立圆柱砂轮和圆锥砂轮磨削后硬齿面插齿刀的波形前刀面方程及空间切削刃方程；为便于比较何种情况下插齿刀的构形误差和切削角度能同时达到最优，分别对磨削五种不同硬齿面插齿刀所用的砂轮进行了廓形设计，并分析了插齿刀的构形误差和侧切削刃切削角度的分布规律；为插齿刀波形前刀面的磨削加工设计了相应的凸轮，用所设计的凸轮和近似的砂轮成功地制造出新构形法硬齿面插齿刀；最后进行插齿加工试验，检验新构形法硬齿面插齿刀的抗崩刃能力、耐磨性及被加工硬齿面齿轮的各项精度。

This kind of technology can control equal frame precisely by pressures during molding to greatly intensify the frame.

A：波若亚士选用&DMS独家制程&来代替传统的&鼓风吹碳管成形&的制作方法，这样避免了产生质量不良的结构，DMS技术能在成形过程中把压力控制得刚刚好而极度强化结构，而且这种技术也便拍体结构的平衡点，耐打性，抗扭力都得到提高，并保持最大的甜点面积。

The simulation results shows that when the hydroforming for real axle housing needs two bulge processes and the specific value of the two bulge ratio is about 1, the result is the best one; To obtain an appropriate route of loading force need adjust internal pressure and axial compression force for many times and according to the failure, the size of the two forces which has been mentioned can be rapidly and rationally adjusted; Because of good greasing conditions influencing largely, reducing the friction between tube blank and die inside surface as well as possibly not only makes more materials flow into the bulge area but effectively diminishes the axial compression force; The good or bad characteristics of tube blank material is also one of the decisive factors and when material is selected, we first consider its' formability.

模拟结果表明，当后桥壳需要两次进行胀形，两次胀形比比值约等于1时，胀形结果最好；合适的加载路径要经过多次调试，能根据胀形缺陷对内压力和轴向力的大小进行迅速地合理调整；良好的润滑环境对后桥壳液压胀形的影响巨大，要尽量减小管坯与模腔内壁的摩擦力，不但使更多的材料流入胀形区，而且能有效的降低轴向力的大小；管坯材料性能的好坏也是影响胀形的决定性因素，选材时首先要考虑材料的成形性。

These results indicated that HA and PmmA are both good bone graft substitutes for mastoid obliteration causing no structural or functional damage to inner ear and inducing no rejection or inflammatory reaction. PmmA, in particular, can be prepared as the occasion requires and can be solidified in a short time, making itself endurable and mouldable.

内耳连续切片，HE染色，光镜观察：实验耳耳蜗结构，形态正常，毛细胞排列整齐，〓泡内壁对HA和PmmA未呈现任何炎性细胞和巨噬细胞等，表明人造骨对内耳结构和功能无损害，不引起排斥或炎症反应，相容性好，是良好的骨组织代替材料，尤其是骨水泥可临时配制，能在短时间内象水泥一样凝固，具有一定的抗压性及成形性，是一种良好的乳突重建材料。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了