1) Closed forging die
闭式锻模
2) closed-die forging
闭式模锻
1.
Based on the analyses,traditional open forging process is changed,and closed-die forging with closed-flash process for the preforging is proposed.
在此基础上,对此类锻件传统的锻造工艺进行了改进,将预锻工序由开式模锻改进为封闭飞边闭式模锻。
2.
Adopting 3D finite element simulation software DEF0RM-3D, the simulation is employed to examine the closed-die forging process in bevel gear.
采用有限元数值模拟软件DEFORM-3D对螺旋齿轮的闭式模锻工艺进行了数值模拟分析,选择了温度、摩擦因子、模数、螺旋角、锥角等参数,进行了多次模拟,得到成形过程中的等效应力、应变分布图以及载荷—行程曲线图。
3) flashless forging
闭式模锻
1.
The CAPP system for flashless forging of gear blanks is described in this paper, which takes VBA as objected-oriented development tool and AutoCAD2002 as drawing platform.
在AutoCAD2000图形处理平台下,用面向对象开发工具VBA研发了齿轮坯闭式模锻CAPP系统。
2.
Developed on the basis of Windows, the flashless forging CAPP system for gear blanks takes AutoCAD 2002 as pattern supporting software, and VBA embedded in AutoCAD 2002 as secondary developing tool.
齿轮坯闭式模锻CAPP系统软件是在Windows平台下,以AutoCAD2002为图形支撑软件,以其内嵌的VBA语言作为二次开发工具开发而成的。
3.
The CAPP system for flashless forging of gear blanks is a computer aided forging process and die design software which is developed for a company, AutoCAD is used as drawing platform and VBA as visual developing tool.
齿轮坯闭式模锻CAPP系统是为某齿轮锻造公司开发的计算机辅助齿轮锻造工艺和模具设计软件。
4) flashless die forging
闭式模锻
1.
The development method and the key technology of parameterized design system for flashless die forging drawings of gear blanks have been described.
以AutoCAD2000为图形支撑软件,以其内嵌的VBA语言作为二次开发工具,开发出齿轮坯闭式模锻件图参数化设计系统。
2.
Based on AutoCAD ActiveX technology,the characteristic of object-oriented programming of VBA has been expounded,then some detailed applications of VBA in flashless die forging CAPP system for gear blanks have been illustrated.
列举了VBA在齿轮坯闭式模锻CAPP系统中的一些具体应用。
3.
Using the feature technique,a set of flashless die forging CAPP system for gear blanks is developed.
运用特征技术 ,开发了一套齿轮坯的闭式模锻 CAPP系统。
5) closed die forging
闭式模锻
1.
The deformation and densification laws of sintered powder material in filling cavity process of closed die forging are researched based on the closed die forging experiment of sintered copper cylinder.
通过烧结紫铜圆柱体试样闭式模锻实验,研究了充满模腔过程的变形与致密规律。
6) blocking impression die forging
闭塞式模锻
1.
The filling capacity of the metal,forming forces and the feasibility of the die structures in the impression die forging process with small flash and the blocking impression die forging process are analyzed and compared with each other.
应用有限元模拟技术,对小型、精密听筒T铁的级进模冷锻工艺进行研究;分析对比了分别采用小飞边模锻和闭塞式模锻工艺时的金属填充能力、成形力大小和模具结构可行性;结果表明闭塞式模锻方案更适合于听筒T铁的级进模冷锻成形;提出了闭塞式模锻+开式锻造整形的听筒T铁级进模冷锻工艺路线;所提出的工艺方案不仅能有效控制材料填充,而且能减小总成形力。
2.
The filling capacity of the metal,forming forces and the feasibility of the die structures in the impression die forging process with small flash and the blocking impression die forging process were analyzed and compared with each other.
应用有限元模拟技术,对小型、精密听筒T铁的级进模冷锻工艺进行研究,分析对比了分别采用小飞边模锻和闭塞式模锻工艺时的金属填充能力、成形力大小和模具结构可行性。
补充资料:锻模
锻模
forging dies
dU0nmU锻模(forging dies)模极时用来使坯料按规定的形状和尺寸变形成为锻件的模具。锻模一般由上下两个模块组成。模块上制有模槽,模槽的多少和形状由锻造工步决定。锻模有整体模和镶块模两种,整体模还有单模槽和多模槽之分。因模锻用设备的不同,锻模又可分为锤用模、螺旋压力机用模、曲柄压力机用模、平锻机用模和液压机用模等。以锤用锻模较为复杂。根据生产批量的大小,锤用锻模在大批量生产时多用整体多槽模;锻件品种多变而批量又小时,多采用整体单槽模或镶块模。整体单槽模这种锻模一般只有一个终锻模槽,如图1所示。此种锻模设计简单,模块尺寸小,制造周里8霹霸3口比裂川 图1整体单槽模结构图 1一模槽;2一毛边槽;3一分模面,4一钳口; 5一燕尾;6一键槽;7一抬模孔;8一检验角;9一水口 漏蒸瘾慕谕口7 朽沃,刁一七卜护卜-卜洲尺阅喃气///切/10 9’比翌迩笠酬萍狱说烫虱28 56 3 2 14 13 14 图2整体多槽模 1一终锻模槽;2一预锻模槽;3一制坯模槽沮一切断模槽; 5一毛边榕;6一毛边桥;7一上模块;8一下模块;9一分模面; 1。一锁扣;n一燕尾;12一键棺;13一钳口;14一水口;15一基准面期短,成本低,操作简单。缺点是在大批量生产中受原材料利用率,生产效率低等综合因素的限制,适应性较差。单槽模一般多用原始棒料,在终锻模措内锻造圆形件或各处断面变化不大的杆件等简单形状的锻件。 整体多槽模此模不仅设有终锻模槽、预锻模糟,而且还设有制坯模楷等多个模槽,如图2所示。它具有生产效率高、锻件质量好等优点,适用于形状复杂、生产批量大的锻件生产,被锻件生产厂家广泛采用。 镶块模把容易磨损的终锻模槽或其中一部分用优质模具钢制成镶块,用楔铁或热套方法安装在普通钢材制成的模块上(图3)。用楔铁或热套紧固的模子可靠性较差,对锻件尺寸稳定有一定的影响;因此,大批量生产复杂锻件时,仍希望采用整体结构的锻模。瞥2嘲 ab 图3镶块模示意图 a一楔铁紧固的镶块;卜一热套紧固的镶块 1一楔铁;2一镶块
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