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冷挤压模具设计及制造对冷挤压模具必须能够耐高温,能承受高的单位面积压力和冲击力,具有良好的耐磨性,并满足工艺要求,这样才能提高模具使用寿命。冷挤凸模的设计、制造和材料根据冷挤压件(图1)尺寸,使凸模结构尺寸、形状应尽可能合理,如凸模导向部份尺寸与导套尺寸配合应恰当,保证在生产过程中产品壁厚差不易变化,凸模工作部份与导向部份交接处R较大时,凸模不易在该处折断。凸模尺寸结构如图2所示,凸模材料为钢结硬质合金,使用寿命一般为24万件,最高使用寿命为60万件。
Cold extrusion die design and manufacturing of cold extrusion die must be able to withstand high temperatures, can withstand high pressure and impact per unit area, with good wear resistance, and meet the technical requirements, so as to improve die life. Cold extrusion die design, manufacture and materials According to the size of cold extrusion (Figure 1), the punch structure size, shape should be as reasonable as possible, such as punch guide part size and guide sleeve size should be appropriate to ensure that Wall thickness difference between the production process is not easy to change, part of the punch and the guide part of the transfer part of the larger R, the punch is not easy to break here. Punch size structure shown in Figure 2, punch material for the steel-bonded carbide, the service life is generally 240,000, the maximum life of 600,000.