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- Keywords centerless excircle grinding;periodic shape error;position error;fixed supporting;adjustment; 无心外圆磨削;周期性形状误差;定位误差;固定支承;调整;
- periodic shape error 周期性形状误差
- Part shape error due to springback is one of most important manufacturing defect in sheet metal stamping process. 回弹是金属板料冲压中的主要缺陷之一,它可以通过修正模具形状加以解决。
- The abrasive disk's dimension is a key parameter that surface shape error converges effectively in aspheric optics lapping and polishing. 在光学非球面研抛加工中,研抛盘尺寸的合理选择是面形误差有效收敛的关键参数之一。
- Based on the meshing theory,The reason produced by the theoretic edge shape error of slotting tool is dis-cussed in detail in this paper. 以啮合理论为基础,详细分析了插齿刀理论刃形误差产生的原因,提出了插齿刀理论刃形误差修正的方法和计算结果。
- The larger of R values of toroidal surface parts, the larger springback value and the larger the effect on shape error of formed parts will be. 环面件的曲率半径越大，回弹量越大，对成形件形状误差影响越大；
- In process of multi-point forming(MPF) for sheet metal parts,there is shape error between the formed workpiece and the objective model due to springback and positioning error. 在板类件多点成形中,由于板料回弹、工件定位等因素,成形后的工件曲面与目标模型之间存在误差。
- A mathematical model in the grinding technology of explosion-proof surface is worked out to find out vibration characteristics, amplitude and phase, and educe the relation curve between shape error and technical parameter. 进而讨论箱体零件加工工艺过程误差转换模型、形状精度特征、传递图、描述方程、误差转换结构图；提出防爆面磨削工艺系统的数学模型；求解出振动特性、幅值和相位，得出了形状误差与工艺参数的关系曲线。
- Abstract: With differential calculus and principles of precision analysis a mathematics formula on spring being out of shape error and relative factors error is derived, and given a simple method of dynamometric spring precision design. 文摘:应用全微分方法及精度分析原理，推导出弹簧变形误差与各相关因素误差之间的数学表达式，提供了一种测力弹簧精度设计的简便方法。
- The part error with RPT is classified as dimension error, shaped error and roughness of surface. 快速成型制件的的误差分为尺寸误差、形状误差和表面粗糙度。
- Broe gauges are used to measure internal hole dimensios and shape errors of different diameter and depth by comparative method. 内径百分表适用于比较法测量不同直径和深度和内孔尺寸及误差。
- The paper discusses the problems in gear processing from the following aspects:accumulative pitch errors,gear tangential errors and gear shape errors. 影响齿轮主要精度超差的原因很多,本文重点就周节累计误差、齿向误差以及齿形误差进行分析,讨论齿轮加工中的精度问题。
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- Shape Error Concealment on Video Object Code 基于视频对象编码的形状差错掩盖技术
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- He had to decide within a given period. 他得在一定时间内作出决定。
- She has a detailed knowledge of this period. 她对这段时期的情况了解地相当详细。
