共查询到19条相似文献,搜索用时 125 毫秒
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采用爆炸焊接方法制作大面积钛-钢复合板,在爆炸焊接完成后需进行热处理以消除爆炸焊接过程中产生的应力。本文研究了不同热处理制度对钛-钢复合板的影响,并确定了合适的钛-钢复合板热处理制度。 相似文献
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对爆炸焊接技术的研究与应用现状进行了综述,指出爆炸焊接机理研究、爆炸焊接专用炸药研究、爆炸焊接产品质量指标体系和检测方法研究、爆炸焊接数值模拟与仿真软件研究、爆炸焊接实验测试技术研究和爆炸焊接技术的应用研究是爆炸焊接有待进一步研究的问题,非晶态合金和具有耐高温、耐腐蚀、耐磨损、抗疲劳、高强度、高磁导率等特质的优质金属或合金的研制,以及超厚、超薄、超大、多样化材料(如脆性材料)的爆炸焊接是爆炸焊接技术的发展方向. 相似文献
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The aim of this research is to study the influence of explosive characteristics on the weld interfaces of stainless steel AISI 304L to low alloy steel 51CrV4 in a cylindrical configuration. The effect of ammonium nitrate-based emulsion, sensitized with different quantities and types of sensitizing agents (hollow glass microballoons or expanded polystyrene spheres) and Ammonium Nitrate Fuel Oil (ANFO) explosives on the interface characteristics is analyzed. Research showed that the type of explosive and the type and proportion of explosive sensitizers affect the main welding parameters, particularly collision point velocity. The morphology of the wavy weld interfaces, chiefly the amplitude and length of the waves, is affected both by the impact velocity and the type and particle size of the explosive sensitizers, and increases with particle size. All the weld interfaces, except welds done with ANFO, displayed localized melted and solidified regions, whose chemical composition resulted from the contribution of both flyer and base metal. 相似文献
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高锰钢-碳钢复合板的制造和应用 总被引:1,自引:0,他引:1
介绍了一种高锰钢与结构钢的爆炸焊接工艺,包括表面处理方法、表面处理参数及条件、所采用的炸药和复合板的性能、爆炸焊用材料的准备。进行了成品复板(复合板)的质量检验,给出了该技术的应用实例。 相似文献
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Explosive welding involves detonation of explosive, interactions of fluid-structure and plastic deformations of metal plates at the instant of the explosion. Conventional mesh-based methods such as the finite element method (FEM) and finite difference method (FDM), are limited in simulation of the explosive welding when mesh distortion and interaction of different materials occur. In order to describe process of the explosive welding and accurately predict physical parameters for the explosive welding, numerical simulation of the explosive welding which involves multi-physical phenomenon is performed by using material point method (MPM). Not only can major physical phenomena of explosion impact be well captured, but also some important technical parameters for the explosive welding can be attained based on the MPM simulation. Through the comparison with the experimental results, it is shown that the MPM is a robust tool in simulation of the explosive welding. 相似文献
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An investigation of mechanical and metallurgical properties of explosive welded aluminum-dual phase steel 总被引:1,自引:0,他引:1
The aim of this paper is investigation of microstructure and property relationship in aluminum-HSLA steel and aluminum-dual phase steel bimetals fabricated by explosive welding technique. Dual phase steel was produced by intercritical annealing and water quenching from 1.45Mn-0.2Si-0.186C HSLA steel. Hardness, tensile shear strength, tensile strength, toughness and microstructure of explosively welded aluminum-HSLA steel and aluminum-dual phase steel were evaluated. Both bimetals have a straight bonding interface. It was also seen that plastic deformation of dual phase steel was higher than HSLA steel near interfaces of bimetals. The hardness was increased near the bond interface of bimetals. Tensile and tensile shear strength tests showed that aluminum-dual phase steel is superior than aluminum-HSLA steel. Also, impact toughness of aluminum-dual phase steel was found significantly higher than that of aluminum-HSLA steel. 相似文献
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Investigation of explosive welding parameters and their effects on microhardness and shear strength 总被引:2,自引:0,他引:2
The aim of this study was to investigate the strength of explosive welded metals with the same chemical compositions. Different welding interfaces (straight, wavy and continuous solidified-melted) were used with changing explosive welding parameters [stand-off distance (s), explosive loading (R) and anvils]. Joined metals were investigated under heat-treated and untreated conditions. Results on the microstructure, microhardness, tensile shear strength and bending tests are reported. According to the experimental results, the effect of the anvil on the explosive welding process was only the joining or not-joining performance. It was shown that the bonding interface changed from a straight to a wavy structure when the explosive loading and stand-off distance were increased. For wavy interfaces, when the explosive loading was increased the wavy length and amplitude increased. Results of tensile shear and bending tests showed that heat-treated specimens have more strength than untreated samples. According to tensile shear test results, straight and wavy interfaces had similar strength. In addition, in bending tests of untreated specimens it was shown that the bending zone had some cracks. 相似文献
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Bogumi? Wronka 《International Journal of Impact Engineering》2011,38(5):309-313
The basic defects occuring in explosive clad plates were properly systemized and the reasons of their formation were explained. Cases of cracks and delaminations in explosive clad plates were examined in this work. Various values of tensile stresses coming from loading and unloading waves were analysed, as they were the main reason of defects. The defects were connected with properties of welded materials in the joint area and beyond it. Some practical aspects of this process were shown as well. 相似文献