与常规拉丝工艺对比,超声工艺具有丝材表面质量好,拉拔力小,道次压缩比大及模具寿命长等优点。其缺点包括投资大,操作人员需专门训练及需用相匹配的模具等。模具的尺寸和重量是影响超声拉丝效果的一个重要因素。对于模具与模具耦合来说,保持模具尺寸(心孔和长度)是重要的。心孔直径的误差应不超过±0.05毫米。模具长度取 Compared with the conventional drawing process, the ultrasonic process has the advantages of good surface quality, low drawing force, high pass compression ratio and long mold life. The disadvantages include large investment, the operator must be specialized training and the need to match the mold and so on. The size and weight of the mold is an important factor affecting the ultrasonic drawing effect. For die to die coupling, it is important to maintain the die size (bore and length). Heart hole diameter error should not exceed ± 0.05 mm. Take the mold length