闭式套筒模改进设计

通过对闭式套筒模结构的仔细分析，阐述了模具各零件之间的定位应符合六点定位原则，并对原闭式套筒模结构进行了改进设计，从而大大改善了模具使用效能，取得了预期效果。     

先秦道儒散文的幽默风格比较

该文比较探析了先秦道儒散文的幽默风格的异同：征服悲剧是先秦道儒散文幽默形成的社会背景;道儒先祖选择了自嘲式幽默,老子偏向于超越与放松,孔子是偏向于退让与矜持;庄子和孟子的幽默则显得锋芒毕露,孟子是理性征服的雅幽默,庄子是无为超脱的冷幽默。     

浅谈商用车纵梁压形模开发

以一套商用车纵梁压形模开发为例,讲述纵梁压形模开发的一般过程,对纵梁冲压工艺进行分析,并设计出纵梁压形模,从模具起吊、导向、材料、工作零件等方面阐述特大型板模具压形模的设计要点。     

GAJA： 3D CAD methodology for developing a parametric system for the automatic （re）modeling of the cutting components of compound washer dies

For the designing of cutting-dies is a complex and experience-based process, it is poorly supported by conventional 3D CAD software. Thus, the majority of design activities, including the (re)modeling of those cutting die-components that are directly responsible for performing shaping operations on a sheet-metal stamping part, traditionally still need to be carried-out repetitively, separately, and manually by the designer. To eliminate some of these drawbacks and upgrade the capabilities of conventional 3D CAD software, this paper proposes a new methodology for the development of a parametric system capable of automatically performing a (re)modeling process of compound washer dies’ cutting-components. The presented methodology integrates CATIA V5 built-in modules, including Part Design, Assembly Design and Knowledge Advisor, publication mechanism, and compound cutting die-design knowledge. The system developed by this methodology represents an ‘intelligent’ assembly template composed of two modules GAJA1 and GAJA2, respectively. GAJA1 is responsible for the direct input of the die-design problem regarding the shape, dimensions and material of the stamping part, its extraction in the form of geometric features, and the transferring of relevant design parameters and features to the module GAJA2. GAJA2 interprets the current values for the input parameters and automatically performs the modeling process of cutting die-components, using die-design knowledge and the company’s internal design and manufacturing standards. Experimental results show that this system significantly shortens the modeling-time for cutting the die-components, improves the modeling-quality, and enables the training of inexperienced designers.     

铝合金压铸模具温度场数值分析

采用PROCAST对铝合金压铸用模具在压铸过程中的温度场进行了数值模拟,对压铸边界条件和传热系统的潜热采用热焓法进行了处理,分析了在不同时刻模具的温度场分布,分析了在不同的浇注温度和不同的模具预热温度情况下对模具温度场的影响,并且预测了热应力集中的位置,对压铸工艺参数的优化提出了见解,分析了冷却水管的作用,为压铸模具的热应力分析奠定基础。     

实验仿真的CAI课件设计

本文介绍了具有实验仿真的《冲压模具的结构分析与拆装》[1]CAI课件设计以及制作CAI课件的相关技术。     

薄件冲裁毛刺的控制方法探讨

厚度小于0.3mm的金属板材，在冲裁时，毛刺的控制有其特殊性。本文对其间隙要求及结构方面进行了探索，并提出了软凹模、组合凹模、斜刀口等方法。     

快速成型技术在模具工业中的应用

介绍了快速成型技术的基本原理、主要特点及其在模具工业中的应用情况。     

PRO/E软件在塑料模具设计与制造中的应用

采用PRO/E软件对薄壳类塑料产品进行造型及模具设计,并利用Plastic/Advisor进行数值模拟,利用PRO/NC进行数控仿真加工等的一体化操作,以期对模具设计的质量和效率的提高提供一定的帮助。     

冷冲模设计中的复杂抽孔尺寸的计算方法

在冷冲模设计中，有时会涉及到一些比较复杂的抽孔的尺寸计算问题，作为模具设计人员，这些计算在模具设计过程中也是非常重要的内容之一。本将介绍几种比较复杂的抽孔的计算方法，并相应介绍了计算原理(原则)与计算公式等。