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die design
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  die design
Also, the UBET-based preform design tool is presented as a process and die design tool for multistage forging processes.
      
The material constants of semisolid material in the stress-strain curve are proposed to perform the numerical analysis for a die design of semisolid forging.
      
This article presents a proof-of-concept illustrating the potential utility of layer-based extrusion dies for the die design and fabrication process.
      
Extrusion die design and development often requires significant craftsman skill and iterative improvement to arrive at a production-ready die geometry.
      
Precise selection of die velocity, process temperature, and die design is necessary to produce satisfactory products.
      
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The features of engineering CAD expert system are discussed, and an ADDES system(Aircraft Drawing-Die design CAD Expert System) is built.Based on the building of DIE coding system,the feature-based code method etc.are used to build user model. The agents in the system have the ability to solve partial problem, and the system organizes the agents into distrib-uted and hierach ic al form. The system synthetical ly uti lizes blackboard s tructure,meta-rea-soning and so on to control the problem- solving...

The features of engineering CAD expert system are discussed, and an ADDES system(Aircraft Drawing-Die design CAD Expert System) is built.Based on the building of DIE coding system,the feature-based code method etc.are used to build user model. The agents in the system have the ability to solve partial problem, and the system organizes the agents into distrib-uted and hierach ic al form. The system synthetical ly uti lizes blackboard s tructure,meta-rea-soning and so on to control the problem- solving process.As discussed above,the problems such as low efficiency etc. caused by building big knowledge base can be solved andt he cooperation of many expert systems can be reached

基于工程设计CAD专家系统特点,建立了ADDES专家系统(飞机压延模CAD专家系统)。在建立DIE编码系统基础上,使用特征编码等方法建立用户模型。系统中机构具有求解部分问题的能力,系统将机构层次地、分布式地组织,综合采用黑板结构、元推理等方法控制系统的问题求解策略,从而解决因知识库庞大而引起的效率低以及多专家系统合作等问题。

The isothermal forging process analysis is given for titanium alloy compressor disks, and forging die design and technical conversion of 6300kN hydraulic press are outlined.

介绍了钛合金压气机盘等温锻造的工艺性,分析了模具设计和6300kN液压机的改造。

This paper describes emphatically the technique of stretchec forming and explosive shape correction and briefly analyzes the surface quality of workpieces in accordance with the structural features of aircraft lip skin parts. It also describes the die design and use of double-acting hydraulic machine related to stretcher forming and the difficulties in forming.

针对飞机唇口蒙皮零件的结构特点,着重论述拉深成形和爆炸校形的工艺方法,简要分析了制件表面的质量问题。对拉深成形所涉及的模具设计、双动液压机的使用,以及成形中的技术难点,也都作了阐述。

 
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