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消声器后盖的落料、拉深、冲孔及翻边的复合模设计及制造工艺分析【优秀冲压复合模具设计含13张CAD图纸】

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消声器 冲孔 复合模具设计 制造工艺 冲压 模具设计 消声器后盖的落料、拉深、冲孔及翻边的复合模设计及制造工艺分析
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消声器后盖复合模设计及制造工艺分析的研究

消声器后盖复合模设计及制造工艺分析全套课程毕业设计

消声器后盖的落料、拉深、冲孔及翻边的复合模设计及制造工艺分析【优秀冲压复合模具设计含13张CAD图纸】

【带任务书+开题报告+外文翻译】【42页@正文21200字】【详情如下】【需要咨询购买全套设计请加QQ1459919609】

上垫高板.dxf

上模座.dxf

下垫高板.dxf

下模座.dxf

中期检查表.doc

冲孔凸模.dxf

冲孔翻边.dxf

凸模固定板.dxf

外文翻译（原文）.wps

外文翻译（译文）.doc

导套45.dxf

导套50.dxf

开题报告-消声器后盖复合模设计及制造工艺分析.doc

拉深翻边凸凹模.dxf

推件器.dxf

消声器后盖复合模设计及制造工艺分析_任务书.doc

落料凹模.dxf

装配图.dxf

论文打印.doc

论文打印.pdf

进度计划表.doc

任务书

一、毕业设计（论文）的内容

相对其他冷冲压模具结构而言，复合模具有其自身的优点，如：工件同轴度较好，表面平直，尺寸精度较高；生产效率高，且不受条料外形尺寸的精度限制，有时废角料也可用以再生产等。汽车排气噪声在整个噪声中占有三分之一的比例,降低整车噪声需要大量降低汽车排气噪声。解决汽车排气噪声的方法是在汽车排气管加装消声装置。消声器的加工工艺直接决定了其工作性能。因此本课题以消声器后盖为对象，进行其复合模工艺设计分析。主要内容包括：

根据给定零件要求，结合模具制造条件、生产批量等因素，分析零件的冲压工艺性。在工艺性分析的基础上，计算工艺参数，确定合适的冲压工艺方案。根据确定的工艺方案进行模具设计与校核。最终设计模具制造与装配工艺。

二、毕业设计（论文）的要求与数据

本设计是消声器后盖的复合模工艺设计分析，某消声器后盖主要尺寸如图1，厚度为1.5mm。生产方式为批量生产。要求所设计模具结构可能简单，以降低成本，提供加工效率。

图1消声器后盖结构尺寸

三、毕业设计（论文）应完成的工作

1、完成二万字左右的毕业设计说明书（论文）；在毕业设计说明书（论文）中必须包括详细的300-500个单词的英文摘要；

2、独立完成与课题相关，不少于四万字符的指定英文资料翻译（附英文原文）；

3、要求设计并绘制模具结构图，绘图工作量折合A0图纸3张以上，其中必须包含两张A3以上的计算机绘图图纸；

4、完成指定的任务内容、达到设计要求。

四、应收集的资料及主要参考文献

[1]肖景容, 姜奎华. 冲压工艺学[M]. 北京：机械工业出版社，1999.

[2]冲模设计手册编写组编著. 冲模设计手册[K]. 北京：机械工业出版社，1999

[3]王孝培. 实用冲压技术手册[K]. 北京：机械工业出版社，2001

[4]陈锡栋，周小玉.实用模具技术手册[K] .北京：机械工业出版社，2005.8：46-56

[5]李文元, 江荧. 冷凝器侧板冲压工艺与级进模设计[J]. 模具工业,  2007,8: 23-25.

[6]杨玉英.实用冲压工艺及模具设计手册[K].北京:机械工业出版社,2005.

[7]花杏华, 黄彩萍. 消声器后盖复合模设计[J]. 模具制造, 2005, 8: 27-29.

[8]蒋晓斌. 精密弹簧固定件复合模设计[J]. 锻压装备与制造技术, 2010,5:

[9]肖军民. 空调顶盖体冲压工艺改进及复合模设计[J]. 模具制造, 2007,10..

摘要

本论文是关于消声器后盖复合模设计及制造工艺分析的研究。 消声器是允许气流通过，却又能阻止或减小声音传播的一种器件，是消除空气动力

性噪声的重要措施。消声器能够阻挡声波的传播，允许气流通过，是控制噪声的有效工 具。采用复合模是因为复合模具有生产效率高、冲压件质量高的特点。且使用复合摸能 在一个模具上完成整个零件的加工。而消声器的制造是通过将板类加工而成，将板类金 属加工成毛坯，然后经过冲孔、拉深、翻孔、翻边等工艺工序。而在研究过程中必须要 经过计算才能得出各冲孔、拉深、翻孔、翻边的凸凹模的尺寸，然后再结合使用寿命、 精度、拆装方便等要求确定凸凹模尺寸。然后再根据计算结果选用合适的模架、螺钉等 其他零件，并且根据要求选用合适的压力机设备，通过进一步的计算确定所选的零件是 否可以用，而压力机设备的选用必须考虑其过载情况，因为一旦过载就会造成人员和设 备的危险。本次零件外形简单对称，所有尺寸均为自由公差，对与零件在拉伸等变形后 的厚度变化没有要求，只要求表面不允许有皱着、划痕、开裂等缺陷，并且断裂口要求 平整因此该零件可以经过冷冲压加工成型。由于该零件是大批量生产，所以在进行设计 时应当要注意总体结构尺寸不能过大并且要简单。

通过计算得到零件的尺寸后使用二维 CAD 软件画出零件图，并通过零件图的装配 得到整个模具的装配图。最后经过修改得到总装配图。并制作出凹模加工工序、凸模加 工工序、凸凹模加工工序。最后编写出装配过程。 关键词：模具；冲压；拉深；翻孔；翻边；CAD 画图

Abstract

This paper is about the muffler back cover compound die design and manufacturing process analysis research.

Muffler is allowed to flow through, but also can prevent or reduce the spread of voice device, is one of the important measures to eliminate the air dynamic noise. Muffler can prevent the spread of sound waves, allowing the airflow through, is an effective tool to control noise. Using composite die because composite modulus has the characteristics of the production of high efficiency and high quality of stamping parts. And the use of composite touch can complete the whole parts in a mold processing. And the manufacture of muffler is by putting a plate type and plate type metal processing into blank, and then after punching and deep drawing, turn over the hole and flanging process procedure. And in the process of research must be calculated to various punching, deep drawing, double the size of the hole flanging, intensive, and then combined with the service life, accuracy, the requirement of dismantling is convenient wait for a convex concave die size. And then according to the calculation results to choose appropriate die set, screws and other parts, and choose proper press equipment according to the requirement, by further calculation to determine whether the selected parts can be used, and the selection of press equipment must consider its overload situation, because once the overload will cause the risk of personnel and equipment. The simple parts shape is symmetrical,  all size  tolerance for freedom,  the  changes with  the thickness of the parts after the tensile deformation such as there is no requirement, only require surface are not allowed to have a wrinkly, scratches, cracking and other defects, and fracture require flat so the parts can pass cold stamping molding. Because the parts are mass production, so in the design should pay attention to the overall structure size not too big and simple.

Is obtained by computing the size of the parts after using A two-dimensional CAD software draw the part drawing, and through the assembly to get the part drawing in the mold assembly drawing. The last modified general assembly drawing. Machining process and making the concave die, punch processing working procedure, intensive processing process. The last write assembly process.

目录

1引言1

1.1  模具的发展前景1

1.1.1 中国模具市场前景广阔1

1.1.2 模具产品市场竞争力不断提升1

1.1.3 模具行业发展速度持续增长1

1.1.4 模具行业机遇和挑战并存1

1.2  冷冲模的发展2

2工艺方案的分析3

2.1  零件工艺性分析3

2.2  工艺方案的分析和确定3

2.3  确定排样方式4

2.3.1 计算材料利用率4

2.3.2 确定排样方案6

3消声器后盖展开形状及尺寸的确定7

3.1  冲孔、翻边部分展开计算7

3.2 拉深件展开计算7

3.2.1 确定修边余量8

3.2.2 确定拉深工件毛坯直径8

4拉深工序主要工艺参数计算9

4.1  确定是否用压边圈9

4.2  拉深次数和拉深系数的确定9

4.3  拉深模的圆角半径9

5四工序复合模的设计10

5.1  计算总压力10

5.1.1 冲裁力的计算10

5.1.2 卸料力的计算10

5.1.3 冲孔力的计算10

5.1.4 顶件力的计算11

5.1.5 拉深力的计算11

5.1.6 压边力的计算12

5.1.7 翻边力的计算13

5.1.8 总压力的计算13

5.2  压力机吨位的选择13

5.3  确定模具压力中心13

5.4  模具工作部分尺寸计算13

5.5  四工序复合模结构的设计17

5.5.1 凹模17

5.5.2 选择模架及确定其他冲模零件19

5.5.3 凸模21

5.5.4 冲模各零件的材料及热处理要求22

5.5.5 卸料板确定23

5.5.6 模具结构的计算24

5.5.7 冲压设备的选择24

6四工序复合模的制造26

6.1 冲模制造的概述26

6.2 冲模具体制造过程27

6.2.1 冷冲模模架的制造27

6.2.2 冲模成形零件的加工27

7四工序复合模的装配说明书30

总结34

谢辞35

参考文献36

1引言

1.1  模具的发展前景

1.1.1 中国模具市场前景广阔

由于中国的各种政策和市场空间扩张的影响，中国庞大的模具用户领域，如汽车， 家用电器，机械，IT 信息产业，包装，建筑材料，日用品行业发展迅速。同时，这些的 行业对模具的要求有所提高，从而大力促进了模具行业的发展，使得其发展速度飞速， 明显高于其他制造业。现如今，世界模具市场处于卖方市场状态，尽管近几年来的市场 总额一直处于 600～650 亿美元的较高水平，但是我国模具出口仅占不到 8％的份额。目 前，国内外均保持看好我国模具行业，因此我国模具行业未来国际模具市场前景广阔， 有较大发展空间。


1.1.2 模具产品市场竞争力不断提升

如今，我国模具行业面临着两重压力。第一是来自工业发达国家的技术优势，第二 是来自发展中国家价格优势。前者在进入我国后，依附其技术优势和能力，在中高档模 具方面拥有竞争优势，从而对我国的模具行业构成了巨大挑战；后者比如像印度、泰国 等这些国家的模具工业成长也很快，它们凭借强烈的价格优势来打击我国的竞争优势， 并使之逐渐减弱。中国模具企业要想提高自身模具产品的国际竞争力，就必须踊跃引进 国外先进的模具制造技术，通过对模具产品结构合理有效的调整和产品质量的提高来达 到这个目的。同时，企业也要注重其经营管理和人才的培养。

参考文献

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[2]彭广威,欧阳波.仪轴盖复合模的改进设计[J].锻压装备与制造技术,2007.8

[3]张正修,李欠娃.闭合平面图形与无搭边排样图―无搭边排样的新理论（上）[J].机械工人：热 加工,2001.1

[4]洪慎章.高长方盒形件拉伸工艺[J].模具工业,1995,10

[5]尹梅.钢质薄壁缸套和膜式煤气表外壳成型工艺分析及计算[J].内燃机,2001.8

[6]谭红涛.浅析拉深模工艺设计及试模故障排除[J].科教文汇,2008.7

[7]郭祖耀.最大最小拉深凹模圆角半径论证[J].模具技术,1993

[8]胡建国.薄板拉深中的压边问题[J].五金科技,2002

[9]周淑容.冲裁间隙对冲裁件质量的影响及其选择方法[J].科技信息,2009

[10]杨何发.多结构要素非轴对称深盒形件冲压成形工艺研究和应用[D].广东：华南理工大学，

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[11]杨庆义.卡盖拉深模在锅炉制造业中的应用及其设计[J].锅炉制造,2008

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[15]周树银.冲模标准模架库建模方法及应用研究[D].天津：天津大学,2006

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内容简介：
毕业设计（论文）中期检查表（指导教师） 指导教师姓名： 蒋占四 填表日期： 2014 年 4 月 17 日 学生学号 1000110134 学生姓名 周 迪 题目名称 消声器后盖复合模设计及制造工艺分析 已完成内容 一、 2013 年 12 月 25 日至 2014 年 1 月 6 日 选择毕业设计题目，收集资料，理解课题，完成开题报告。 二、 1 月 7 日至 3 月 10 日 熟悉 UG 和二维软件 CAD的相关运用知识，查阅相关使用手册。 三、 3 月 11 日至 3 月 17 日 确定工艺方案。 四、 3 月 18 日至 4 月 17 日 完成相关的计算，包括工艺参数，压力机的选择等。 检查日期： 2014 年 4 月 16 日 完成情况 全部完成 按进度完成 滞后进度安排 存在困难 在软件的使用上，由于是新版本，所以在使用上会有很多的不习惯的地方。然后在设计的时候会显得毫无头绪，特别是在技术参数设计的时候，由于资料不是很详细，加上图书馆的书籍是很早的版本，所以上面有很多的错误，在使用的时候要不断地查找再查找。计算上要不断查资料导致计算环节进程缓慢。 解决办法 尽可能熟悉软件 的运用。有问题的时候去问同做模具方向的同学。因为问同学的时候有些公式的运用可以得到更好地理解。 预期成绩 优 秀 良 好 中 等 及 格 不及格 建 议 教师签名： 教务处实践教学科制表 说明： 1、 本表由检查毕业设计的指导教师如实填写； 2、 此表要放入毕业设计（论文）档案袋中； 3、 各院 (系 )分类汇总后报教务处实践教学科备案。 nts编号： 毕业设计(论文)外文翻译（原文）院 （系）： 机电工程学院 专 业： 机械设计制造及其自动化 学生姓名： 周 迪 学 号： 100011013 4 指导教师单位： 桂林电子科技大学 姓 名： 蒋占四 职 称： 副教授 2014 年 05 月 26 日ntsDie history1 Die position in industrial productionMold is a high-volume products with the shape tool, is the main process of industrial production equipment. With mold components, with high efficiency, good quality, low cost, saving energy and raw materials and a series of advantages, with the mold workpieces possess high accuracy, high complexity, high consistency, high productivity and low consumption , other manufacturing methods can not match. Have already become an important means of industrial production and technological development. The basis of the modern industrial economy. The development of modern industrial and technological level depends largely on the level of industrial development die, so die industry to national economic and social development will play an increasing role. March 1989 the State Council promulgated on the current industrial policy decision points in the mold as the machinery industry transformation sequence of the first, production and capital construction of the second sequence (after the large-scale power generation equipment and the corresponding power transmission equipment), establish tooling industry in an important position in the national economy. Since 1997, they have to mold and its processing technology and equipment included in the current national focus on encouraging the development of industries, products and technologies catalog and to encourage foreign investment industry directory. Approved by the State Council, from 1997 to 2000, more than 80 professional mold factory owned 70% VAT refund of preferential policies to support mold industry. All these have fully demonstrated the development of the State Council and state departments tooling industry attention and support. Mold around the world about the current annual output of 60 billion U.S. dollars, Japan, the United States and other industrialized countries die of industrial output value of more than machine tool industry, beginning in 1997, Chinas industrial output value has exceeded the mold machine tool industry output.According to statistics, home appliances, toys and other light industries, nearly 90% of the parts are integrated with production of chopsticks; in aircraft, automobiles, agricultural machinery and radio industries, the proportion exceeded 60%. Such as aircraft manufacturing, the use of a certain type of fighter dies more than 30,000 units, of which the host 8000 sets, 2000 sets of engines, auxiliary 20 000 sets. From the output of view, since the 80s, the United States, Japan and other industrialized countries die industry output value has exceeded the machine tool industry, and there are still rising. Production technology, according to the International Association predicts that in 2000, the product best pieces of rough 75%, 50% will be finished mold completed; metals, plastics, ceramics, rubber, building materials and other industrial products, most of the mold will be completed in more than 50% metal plates, more than 80% of all plastic products, especially through the mold into.nts2 The historical development of moldThe emergence of mold can be traced back thousands of years ago, pottery and bronze foundry, but the large-scale use is with the rise of modern industry and developed.The 19th century, with the arms industry (guns shell), watch industry, radio industry, dies are widely used. After World War II, with the rapid development of world economy, it became a mass production of household appliances, automobiles, electronic equipment, cameras, watches and other parts the best way. From a global perspective, when the United States in the forefront of stamping technology - many die of advanced technologies, such as simple mold, high efficiency, mold, die and stamping the high life automation, mostly originated in the United States; and Switzerland, fine blanking, cold in Germany extrusion technology, plastic processing of the Soviet Union are at the world advanced. 50s, mold industry focus is based on subscriber demand, production can meet the product requirements of the mold. Multi-die design rule of thumb, reference has been drawing and perceptual knowledge, on the design of mold parts of a lack of real understanding of function. From 1955 to 1965, is the pressure processing of exploration and development of the times - the main components of the mold and the stress state of the function of a mathematical sub-bridge, and to continue to apply to on-site practical knowledge to make stamping technology in all aspects of a leap in development. The result is summarized mold design principles, and makes the pressure machine, stamping materials, processing methods, plum with a structure, mold materials, mold manufacturing method, the field of automation devices, a new look to the practical direction of advance, so that pressing processing apparatus capable of producing quality products from the first stage.Into the 70s to high speed, launch technology, precision, security, development of the second stage. Continue to emerge in this process a variety of high efficiency, business life, high-precision multi-functional automatic school to help with. Represented by the number of working places as much as other progressive die and dozens of multi-station transfer station module. On this basis, has developed both a continuous pressing station there are more slide forming station of the press - bending machine. In the meantime, the Japanese stand to the worlds largest - the mold into the micron-level precision, die life, alloy tool steel mold has reached tens of millions of times, carbide steel mold to each of hundreds of millions of times p minutes for stamping the number of small presses usually 200 to 300, up to 1200 times to 1500 times. In the meantime, in order to meet product updates quickly, with the short duration (such as cars modified, refurbished toys, etc.) need a variety of economic-type mold, such as zinc alloy die down, polyurethane rubber mold, die steel skin, also has been very great development.From the mid-70s so far can be said that computer-aided design, supporting the continuous development of manufacturing technology of the times. With the precision and complexity of mold rising, accelerating the production cycle, the mold industry, the quality of equipment and personnel are required to improve. Rely on common processing equipment, their experience and skills can not meet the needs of mold. Since the 90s, mechanical and ntselectronic technologies in close connection with the development of NC machine tools, such as CNC wire cutting machine, CNC EDM, CNC milling, CNC coordinate grinding machine and so on. The use of computer automatic programming, control CNC machine tools to improve the efficiency in the use and scope. In recent years, has developed a computer to time-sharing by the way a group of direct management and control of CNC machine tools NNC system.With the development of computer technology, computers have gradually into the mold in all areas, including design, manufacturing and management. International Association for the Study of production forecasts to 2000, as a means of links between design and manufacturing drawings will lose its primary role. Automatic Design of die most fundamental point is to establish the mold standard and design standards. To get rid of the people of the past, and practical experience to judge the composition of the design center, we must take past experiences and ways of thinking, for series, numerical value, the number of type-based, as the design criteria to the computer store. Components are dry because of mold constitutes a million other differences, to come up with a can adapt to various parts of the design software almost impossible. But some products do not change the shape of parts, mold structure has certain rules, can be summed up for the automatic design of software. If a Japanese companys CDM system for progressive die design and manufacturing, including the importation of parts of the figure, rough start, strip layout, determine the size and standard templates, assembly drawing and parts, the output NC program (for CNC machining Center and line cutting program), etc., used in 20% of the time by hand, reduce their working hours to 35 hours; from Japan in the early 80s will be three-dimensional cad / cam system for automotive panel die. Currently, the physical parts scanning input, map lines and data input, geometric form, display, graphics, annotations and the data is automatically programmed, resulting in effective control machine tool control system of post-processing documents have reached a high level; computer Simulation (CAE) technology has made some achievements. At high levels, CAD / CAM / CAE integration, that data is integrated, can transmit information directly with each other. Achieve network. Present. Only a few foreign manufacturers can do it.3 Chinas mold industry and its development trendDue to historical reasons for the formation of closed, big and complete enterprise features, most enterprises in China are equipped with mold workshop, in factory matching status since the late 70s have a mold the concept of industrialization and specialization of production. Production efficiency is not high, poor economic returns. Mold production industry is small and scattered, cross-industry, capital-intensive, professional, commercial and technical management level are relatively low.According to incomplete statistics, there are now specialized in manufacturing mold, the product supporting mold factory workshop (factory) near 17 000, about 600 000 employees, annual output value reached 20 billion yuan mold. However, the existing capacity of the ntsmold and die industry can only meet the demand of 60%, still can not meet the needs of national economic development. At present, the domestic needs of large, sophisticated, complex and long life of the mold also rely mainly on imports. According to customs statistics, in 1997 630 million U.S. dollars worth of imports mold, not including the import of mold together with the equipment; in 1997 only 78 million U.S. dollars export mold. At present the technological level of China Die & Mould Industry and manufacturing capacity, Chinas national economy in the weak links and bottlenecks constraining sustainable economic development.3.1 Research on the Structure of industrial products moldIn accordance with the division of China Mould Industry Association, China mold is divided into 10 basic categories, which, stamping die and plastic molding two categories accounted for the main part. Calculated by output, present, China accounts for about 50% die stamping, plastic molding die about 20%, Wire Drawing Die (Tool) about 10% of the worlds advanced industrial countries and regions, the proportion of plastic forming die die general of the total output value 40%.Most of our stamping die mold for the simple, single-process mode and meet the molds, precision die, precision multi-position progressive die is also one of the few, die less than 100 million times the average life of the mold reached 100 million times the maximum life of more than accuracy 3 5um, more than 50 progressive station, and the international life of the die 600 million times the highest average life of the die 50 million times compared to the mid 80s at the international advanced level.Chinas plastic molding mold design, production technology started relatively late, the overall level of low. Currently a single cavity, a simple mold cavity 70%, and still dominant. A sophisticated multi-cavity mold plastic injection mold, plastic injection mold has been able to multi-color preliminary design and manufacturing. Mould is about 80 million times the average life span is about, the main difference is the large deformation of mold components, excess burr side of a large, poor surface quality, erosion and corrosion serious mold cavity, the mold cavity exhaust poor and vulnerable such as, injection mold 5um accuracy has reached below the highest life expectancy has exceeded 20 million times, the number has more than 100 chamber cavity, reaching the mid 80s to early 90s the international advanced level.3.2 mold Present Status of TechnologyTechnical level of Chinas mold industry currently uneven, with wide disparities. Generally speaking, with the developed industrial countries, Hong Kong and Taiwan advanced level, there is a large gap. The use of CAD / CAM / CAE / CAPP and other technical design and manufacture molds, both wide application, or technical level, there is a big gap between both. In the application of CAD technology design molds, only about 10% of the mold used in the design of CAD, aside from drawing board still has a long way to go; in the application of CAE design and ntsanalysis of mold calculation, it was just started, most of the game is still in trial stages and animation; in the application of CAM technology manufacturing molds, first, the lack of advanced manufacturing equipment, and second, the existing process equipment (including the last 10 years the introduction of advanced equipment) or computer standard (IBM PC and compatibles, HP workstations, etc.) different, or because of differences in bytes, processing speed differences, differences in resistance to electromagnetic interference, networking is low, only about 5% of the mold manufacturing equipment of recent work in this task; in the application process planning CAPP technology, basically a blank state, based on the need for a lot of standardization work; in the mold common technology, such as mold rapid prototyping technology, polishing, electroforming technologies, surface treatment technology aspects of CAD / CAM technology in China has just started. Computer-aided technology, software development, is still at low level, the accumulation of knowledge and experience required. Most of our mold factory, mold processing equipment shop old, long in the length of civilian service, accuracy, low efficiency, still use the ordinary forging, turning, milling, planing, drilling, grinding and processing equipment, mold, heat treatment is still in use salt bath, box-type furnace, operating with the experience of workers, poorly equipped, high energy consumption. Renewal of equipment is slow, technological innovation, technological progress is not much intensity. Although in recent years introduced many advanced mold processing equipment, but are too scattered, or not complete, only about 25% utilization, equipment, some of the advanced functions are not given full play.Lack of technology of high-quality mold design, manufacturing technology and skilled workers, especially the lack of knowledge and breadth, knowledge structure, high levels of compound talents. Chinas mold industry and technical personnel, only 8% of employees 12%, and the technical personnel and skilled workers and lower the overall skill level. Before 1980, practitioners of technical personnel and skilled workers, the aging of knowledge, knowledge structure can not meet the current needs; and staff employed after 80 years, expertise, experience lack of hands-on ability, not ease, do not want to learn technology. In recent years, the brain drain caused by personnel not only decrease the quantity and quality levels, and personnel structure of the emergence of new faults, lean, make mold design, manufacturing difficult to raise the technical level.3.3 mold industry supporting materials, standard parts of present conditionOver the past 10 years, especially the Eighth Five-Year, the State organization of the ministries have repeatedly Material Research Institute, universities and steel enterprises, research and development of special series of die steel, molds and other mold-specific carbide special tools, auxiliary materials, and some promotion. However, due to the quality is not stable enough, the lack of the necessary test conditions and test data, specifications and varieties less, large molds and special mold steel and specifications are required for the gap. In the steel supply, settlement amount and sporadic users of mass-produced steel supply and demand contradiction, yet to be effectively addressed. In addition, in recent years have foreign steel mold set up sales outlets in China, but poor channels, technical services support ntsthe weak and prices are high, foreign exchange settlement system and other factors, promote the use of much current.Mold supporting materials and special techniques in recent years despite the popularization and application, but failed to mature production technology, most still also in the exploratory stage tests, such as die coating technology, surface treatment technology mold, mold guide lubrication technology Die sensing technology and lubrication technology, mold to stress technology, mold and other anti-fatigue and anti-corrosion technology productivity has not yet fully formed, towards commercialization. Some key, important technologies also lack the protection of intellectual property.Chinas mold standard parts production, the formation of the early 80s only small-scale production, standardization and standard mold parts using the coverage of about 20%, from the market can be assigned to, is just about 30 varieties, and lim
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