放电诱导可控烧蚀高效加工典型工艺方法

Series Typical Efficient Machining Methods of Controllable Burning by Discharge-induced

提出了一种以放电诱导产生可控烧蚀为基础的高效加工方式。利用大部分金属在放电诱导后表面产生活化区会与通入的氧气发生燃烧的特点,通过放电诱导,使加工表面产生活化区,并控制氧气的通入量,使加工表面金属产生可控高效烧蚀,而后通过电火花加工、电解加工、车削、铣削、磨削等工艺方法修整烧蚀表面,完善表面质量与精度。此种加工方法特别适合于钛合金、高温合金、高强度钢等难加工金属材料的加工。由于采用水溶性非可燃工作液,节能环保,不会产生有害气体及燃烧隐患,因此也是一项绿色制造技术,是机械加工领域一种全新的高效加工方法。

A kind of efficient machining mechanism which is based on controllable burning by dis- charge-induced is proposed. By utilizing the characteristics which most metals under the condition of activation can burn with inletting oxygen, the controllable efficient burning machining takes place on the surface of metal by discharge-induced metal producing the activation of machining surface area and controlling the intake of oxygen. Then the surface quality and accuracy are finished by various process methods such as EDM, ECM, turning, milling, grinding and so on. This machining method is partic- ularly suitable for machining difficult cutting materials such as titanium alloy, superalloy and high strength steel. It is a green manufacturing technology and an efficient new machining method in the fields of mechanical machining, because it uses water-soluble and non-combustible dielectrics and does not generate toxic gas.