共查询到20条相似文献,搜索用时 15 毫秒
1.
采用楔横轧工艺,用温轧轧制钢芯,并对其成形过程进行研究。根据零件的成形特点,采用UG软件设计楔横轧不同工艺参数需要的模具,采用Deform软件模拟成形过程,从中选出最佳的工艺参数,并分析该工艺参数下钢芯大弧体不同成形阶段径向截面等效应力、等效应变及轴向截面等效应力、等效应变,最后通过实验轧制出产品。结果表明:成形角、展宽角等工艺参数对轧件外形及心部质量有很大影响;采用合理的楔横轧工艺参数可以轧制出心部无缺陷的合格产品;轧件的等效应力及等效应变均存在一定的规律,且最大值均在合理的范围内。 相似文献
2.
Thoms Blohm Maximilian Mildebrath Malte Stonis Jan Langner Thomas Hassel Bernd-Arno Behrens 《Production Engineering》2017,11(3):255-263
Most of today’s technical parts and components are made of monolithic materials. These mono-material components produced in established production processes reach their limits due to their respective material characteristics. Thus, a significant increase in production quality and efficiency can only be achieved by combining different materials in one part. Bulk forming of previously joined semi-finished products to net shape hybrid components that consist of two different materials is a promising method to produce parts with locally optimized characteristics. This new production process chain offers a number of advantages compared to conventional manufacturing technologies. Examples are the production of specific load-adapted forged parts with a high level of material utilization, an improvement of the joining zone caused by the following forming process and an easy to implement joining process due to the simple geometries of the semi-finished products. This paper describes the production process of hybrid steel parts, produced by combining a plasma-transferred arc deposition welding process with a subsequent cross wedge rolling process. This innovative process chain enables the production of hybrid parts. To evaluate the developed process chain, coating thickness of the billet is analysed before and after cross wedge rolling. It could be shown, that the forming process leads to an improvement of the coating, meaning a more homogeneous distribution along the main axis. 相似文献
3.
4.
曾苏民 《中国有色金属学报》1996,6(2):93-97
复合包套由金属套与隔热片组成,运用复合包套模锻可获得理想的锻造温度,降低变形抗力,细化晶粒;消除锻造裂纹,改善锻件性能,提高模具寿命。西南铝加工厂运用复合包套模锻新工艺首次在国内实现了大型难变形金属精密锻件的生产,该文主要介绍其规律和实例 相似文献
5.
6.
7.
8.
9.
10.
11.
介绍了楔横轧制坯工艺及其模具设计,阐述了楔横轧模具的主要设计参数及计算公式,通过锂鱼钳楔横轧制坯工艺的生产实践,对新旧制坯工艺进行了技术经济分析与比较,证明了楔横轧的轧制坯工艺的一系列优点。 相似文献
12.
李涛 《锻压装备与制造技术》2014,49(6):71-73
楔横轧轧制工艺以其高效、节能的特点越来越受到关注.模具设计是楔横轧工艺的核心之一,工艺参数的选择是影响轧制工艺正常进行的重要因素.在轧制过程中出现的缺陷严重影响轧件质量,成为制约楔横轧工艺发展的重要因素.本文介绍了楔横轧技术的发展,铝合金楔横轧技术的研究意义,在楔横轧工艺参数和缺陷等方面的研究现状. 相似文献
13.
14.
15.
16.
大型轴类件楔横轧成形可行性分析 总被引:6,自引:1,他引:6
目前国内外重型汽车等大型轴类件采用锻造成形,存在着效率低成本高等问题.本文利用Ansys/Dyna有限元软件,对楔横轧轧制大型轴类件进行有限元数值模拟,分析了随着轧件直径的增大,轧件内部应力、应变的变化规律和直径对轧件心部应力的影响,得出大型轴类件采用楔横轧成形是可行的,为实现大型轴类件高效化、节能化生产提供了理论依据. 相似文献
17.
18.
19.
介绍了楔横轧成形过程的工艺参数及变形区参数,分析了楔横轧展宽区的金属变形情况及推导了变形区参数的工程计算公式。文末对鲤鱼钳毛坯进行了实例计算。 相似文献