While the amount of melt filling the back welds metal of keyhole was larger than that caused by plume losses and the shrinkage of weld metal, the humps came into being. Before the solidification of the upper part of the melt, the melt was driven by the fluctuated plasma, plumes, or other forces. During the hybrid welding, the main forces influencing the surface depression or humping were intrinsic stress from coefficient of thermal expansion gradient, surface tension, buoyancy force, stirring action, and shock waves at the end of the keyhole. And the penetration coefficient chiefly affected the root of weld and the keyhole formation. The results manifested that in the model, the circular disk radius played a key role in the formation of bead profile. For mechanism surface formation, surface depression or humps was discussed based on the high-speed photography technique to verify bead profile characterization. The effects of the circular disk of radius and the material properties on the bead profile were discussed. In contrast, laser heat source model was validated using macrostructure analysis results. TaishanRoad, Tianyuan District, Zhuzhou City.In order to optimize the laser–tungsten inert arc (TIG) welding process of cemented carbide to steel, a novel combined model consisting of circular disk source, line source, and double ellipsoidal TIG heat source was put forward to simulate the deep penetration phenomena and bead profile. LtdĢ15, building 1, International Students Pioneer Park, We will make a feedback to you ASAP after receive your order list. (Also you can directly contact our salesperson by E-mail / Skype / Whats App)Ģ. Fill your Order List in our online Inquiry System. All products will be tested before bulk production, and we will check the physical properties, shape and tolerance for ensuring qualified products before shipping.ġ. Thanks to strong production and distribution system, we promise to offer our customers the most competitive price. We are located in Zhuzhou city, Hunan province where is base of tungsten carbide. We are Factory with 12 years of production experience. Q1 : Are you Factory or trading company ? We pay much attention to patents and rights.Īll materials are tested in terms of hardness, density and T.R.S before using.
Nut forming dies and high impact resistance forging dies. Impact resistance forging dies,hot-press forging dies and rollers.ĭies for resistant or impact resistant application. Ratio punching、stamping、froging tools under large stress.įor fabricating of stamping dies for watch pats.spring plates of musicalinstruments,battersjars,small sized steelballs,screws,screw caps.
High bending strength,wear resistance lower than YG6,used for wearįorming or stamping dies for metal powders and nonmetal powders.įor fabricating drawing dies of staintubes and rods under high compressibility Wear parts,and tools for machining other alloys. Good wear resistance,universal grades widely used in machining toolsįor cast iron,nonferrous metals and their alloys and nonmetal ma-terials, Suitable for making unloading plates, stamping dies, punches, electronic progressive dies and other stamping dies, etc.ģ.
Suitable for making cast iron rolls and high-nickel-chromium roll dressing knives.Ģ. Tungsten steel round gaskets Application range of wear-resistant tungsten steel small discs:ġ. Tungsten carbide round disc cutters are made of 100% original carbide materials,the disc cutter with high hardness and abrasion resistance.