冲锻

The theoretical minimum movement velocity for the sheet to be punched by laser shock wave s was deduced.

为了验证激光冲击波冲孔工艺的可行性，采用Nd玻璃高功率脉冲激光器在0.4mm厚锻铝合金板料上进行冲孔试验。

A layer of dry lubricant is applied on the inner surface of a cavity within a forging die of a forging press of the present invention.

干膜润滑剂层施用于本发明的锻压机锻模内腔体的内表面上，还可以施用在锻压机冲头的外表面上。

At first step, the processor before the deformable body contact the end face of cone die cavity regarded as an extrusion process. The minification of core boss's cross-section regarded as compressibility of direct extrusion, which acted as definition factor when construct the Direct Extrusion Model element. Another step, the model element of flat punch extrusion on wedge piece process was constructed when propose the process of deformable body overflow die corner. In this way the spherical end face of blank looked as cone end face one, t he approximate treatment is one of originality innovation in this paper. At last, the two elements have been connected and constructed the model element of cone boss part's deformation in the open die forging.

对于锥形凸台成形的第一个特征时段，即坯料和锥形凸台型腔的端面接触之前的变形过程，本文将凸台的截面缩小率转换成挤压成形的压缩率并以此为界定，建立了不同截面缩小率时的锥形模正挤压的模型单元；对于锥形凸台成形的第二特征时段即锥形模的角部充满过程，在详细考察锥形型腔端面对变形过程影响的基础上，将变形体的球形端面近似成锥面建立了平冲头挤压楔形体的模型单元；最后将前述两种模型单元有机连结，构建了开式模锻中整个锥形凸台成形过程的定量描述。

At present,in our country , general mechanical press which widespread used in mechanical profession,uses the crank link block organization generally.It does not have the low speed to hammer flushes comes back promptly thecharacteristic,So the ribration noise is to be big when it work attacks, The mold life is low,the craft adaption scope is narrow.

目前，我国机械行业中广泛使用的通用机械压力机，普遍采用曲柄连杆滑块机构，无低速锻冲急回特性，其工作时冲击振动噪声大，模具寿命低，工艺适应范围窄。

PUNCHING Shanghai Second Machine Co., Ltd., covers an area of more than 46,000 square meters, plant area of more than 18,000 square meters, more than 500 employees, more than 50 engineers, strong technical force, advanced processing equipment and scientific quality management, strong development capacity for the continuous development of our company has laid a good foundation, Shanghai Forging Machine Tool Co., Ltd. folding scissors purposes are: to use modern business management methods, in favor of the spirit of customer service on the principles of social production, sales, service .

上海冲剪二机有限公司，占地面积46000多平方米，厂房面积18000多平米，500多名员工，工程技术人员50多名，技术力量雄厚，加工设备先进，科学的质量管理，较强的开发能力为我公司的不断发展奠定了良好的基础，上海博锻剪折机床有限公司的宗旨是：用现代企业的管理方法，本着有利于客户，服务于社会的原则进行生产、销售、服务。

In this paper the forming process in the multi-ram forging process of high-pressure tee joint used in power industry and petroleum chemistry industry is introduced.

介绍了采用多向模锻锻制动力工业和石化工业用高压三通的工艺过程，通过FEM模拟总结出高压三通的基本成形规律，并揭示了高压三通多向模锻过程中水平冲头向上翘曲现象及其产生原因，为类似锻件的多向模锻工艺的设计提供了有益的借鉴。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。