毛坯

研究表明：1.适当提高预压毛坯的相对密度，有利于体系的燃烧合成反应；

To increase the relative density of pre-condensed semifinished product appropriately would be favorable for combustion synthesis reaction of the system .

用CAD软件辅助求解旋转体拉深件的毛坯尺寸

Solving the blank dimension of rotational drawing parts with CAD software

这是一个猫头雕像的毛坯。

It is a rough-hewn carving of a cat 's head .

汽车车架厚板冲压件毛坯展开CAD

CAD for unfolding of thick plate punched element in automobile frame

板料毛坯尺寸的优化及其CAD系统

Size Optimization for the Metal Sheet Blank and the CAD System

冲压毛坯排样优化问题是冲模CAD领域的一大课题。

Blank layout is very important for blanking die CAD research .

冲压毛坯排样CAD技术的研究

Research on the blank layout CAD technology Shanghai Jiaotong University

铸造CAD／夹具CAD完成零件铸件毛坯的设计和装夹设计；

Cast CAD / Fixture CAD accomplishes the design of block and fixtures ;

RBF神经网络在冲压件毛坯优化设计中的应用

Application of RBF Neural Network on the Optimized Design of Blank Shape of Stampings

确定复杂形状旋转体拉延毛坯尺寸的计算机AutoCAD方法

A Method to Determine the Drawing-billet Size for Complex-shape Revolved-body by Computer based on AutoCAD

客户可以按自己需求选择毛坯和刀具等，并通过数控面板输入NC代码进行模拟加工。

Users can choose blank and tool , and then simulate the maching process by inputting NC code through the panel .

再用Matlab软件进行矩阵运算，一次便能求出包括毛坯在内的工序尺寸及公差。

Then the matrixes are manipulated with Matlab so that the process dimensions and tolerances including those of workblank are figured out at one time .

根据准双曲面齿轮数控加工原理，提出了CNC铣齿机、齿轮毛坯和盘铣刀实体模型的具体构建方法；

Based on NC machining principle of hypoid gears , three-dimensional modeling method for CNC machine tool , workpiece and cutter is introduced .

在简要介绍毛坯排样CAD的技术构成的基础上，总结了一种高效、合理的普通排样核心算法：改进的一步平移法。

In this paper , the technology structure of blank layout CAD is briefly described , then a high efficient , reasonable core algorithm called improved transversal length for normal blank layout is summarized .

用COM和特征识别技术实现了对轿车冲裁弯曲级进冲压件进行弯曲特征识别展开、毛坯排样几何特征图形的识别以及进行各类排样方式下的毛坯优化排样。

By means of COM programming , the bending and plane geometry feature recognition of blank layout for the car punch parts were completed in blank layout optimization .

在分析了螺旋锥齿轮数控加工原理后，采用面向对象技术和计算机辅助设计系统中的3维建模功能，提出了CNC铣齿机床、齿轮毛坯和盘铣刀3维几何模型的具体构建方法；

After analyzing NC machining principle of spiral bevel and hypoid gears , three-dimensional modeling method for CNC machine tool , workpiece and cutter is introduced using OOP and three-dimensional modeling function in CAD system .

结合板料成形过程的CAE技术，提出基于板料冲压成形FEM分析结果的毛坯形状反推算法。

The blank shape is an important factor in metal forming , a method to calculate the blank shape based on the results of FEM forming numerical simulation is developed in this paper .

Fe-Cr-Ni耐热合金机匣毛坯自由锻新工艺

A New Free Forging Technology on Blank of Case of an Aircraft of Fe-Cr-Ni Base Superalloy

传统的CAPP（ComputerAidedProcessPlanning，计算机辅助工艺过程设计）的作用是利用计算机来进行零件加工工艺过程的制订，把毛坯加工成工程图纸上所要求的零件。

Computer Aided Process Planning ( CAPP ) takes advantage of computer to prepare the processing of parts and to turn roughcast into parts according to the requirements of drawings . By inputting the geometrical parameters ( including shape , sizes and etc. )

根据离散化方法制造模具型面毛坯的原理，结合CAE分析的结果，提出了一种新的顶杆错位布置方法。

Based on the principle of discretization to manufacture rough mold surfaces , combined with the results of CAE analysis , a new stagger layout of pin - lifts is put forward .

毛坯的供方（）和塑料件供方（）不能提供PPAP。

The rough supplier () and the plastic parts supplier () can not supply the PPAP .

并对Agrawal提出的单一尺寸矩形毛坯最优化排样方法进行扩展，构造出一种分支定界方法，用于解决长板最优分割问题。

A branch and bound method is constructed by extending Agrawal 's approach to solve this problem .

STEP-NC的数据模型包含了从毛坯到成品的所有信息，内容涉及三维几何信息、刀具信息、制造特征信息和工艺信息。

STEP-NC data model contains all of the information from rough to finished pieces , concerning the three-dimensional geometric information , tool information , manufacturing feature information and process information .

并进一步给出利用二次Bezier曲线及Coons曲线绘制计算毛坯图（截面图及直径图）的拟合曲线公式。

Using Bezier and coons curves , fitting curves for smoothing the billet chart ( cress-section and diametral chart ) are calculated and drawn by computers to get more precise results .

本文利用软件UG的CAD模块建立了数控机床、被加工零件及毛坯的参数模型，同时在CAM模块中完成了数控编程工作，并运用后处理模块生成了可被机床直接执行的G代码；

The virtual models of the NC milling machine and the part that will be machined are established with the UG / CAD , then programming is accomplished with UG / CAM , and finally the program is export in the form of G code .

试验结果表明，铁含量在0.45%～0.55%时，AlSi10Mg（Cu）五阀缸盖毛坯的综合性能和加工性能最为适宜；

Results show that better overall performance and machining property can be obtained for AlSi10Mg ( Cu ) five-valve cylinder head blank with Fe content of 0.45 % ~ 0.55 % .

再用UG软件，进入加工模块、选择毛坯实体、建立刀具及其粗/精铣刀具轨迹、模拟验证、编写识别程序等步骤实现三棱孔的数控加工。

After that , the NC processing of three-arris was realized by adopting UG software , entering processing module , choosing rough entity , establishing cutter and the traces of rough or finishing milling , simulating validation , compiling reorganization program .

汽车覆盖件的拉深毛坯，传统的做法是拉深前先落料，而IVECO（依维柯）车身覆盖件大多采用方块坯料直接拉深。

Drawing blank for automobile body covering parts , the traditional method is blanking before drawing , but most IVECO body covering parts are directly drawn by using rectangle blank .

以195t活塞模具为例，研究了在生产厚大顶部活塞毛坯时所遇到的缩孔问题。

Taking 195T piston mould as an example , this paper studies the problem of contraction cavity encountered during the production of thick - top pistons .

从毛坯厚度差、装舟方式、冷却速度、舟皿涂料等方面分析了YG8和J12硬质合金长条薄片的弯曲变形原因，提出了几种抑制弯曲变形的措施。

Shape retention of YG8 and J12 thin bar cemented carbides in practical production were analyzed and several methods were brought out to prevent deformation .