CAJ | 학술논문

针对硬质合金模具的加工表面精度要求,进行了高速钢与硬质合金两种材料的电火花加工工艺对照实验。为获得较低的表面粗糙度,选取了较小的电加工参数。实验结果表明,在该实验条件下,电火花加工的表面粗糙度不再满足常规条件下的经验公式,而与工件材料的再凝结特征、成分及电蚀产物的排出条件有关。
침대경질합금모구적가공표면정도요구,진행료고속강여경질합금량충재료적전화화가공공예대조실험。위획득교저적표면조조도,선취료교소적전가공삼수。실험결과표명,재해실험조건하,전화화가공적표면조조도불재만족상규조건하적경험공식,이여공건재료적재응결특정、성분급전식산물적배출조건유관。
To meet the requirements of surface precision of cemented carbide mould,experiments of electrical discharge machining were carried out.To obtain lower roughness surface,the smaller parameters were chosen.The results indicate that the surface roughness is mainly related to re-concreting character,components of material and ejection condition of etched waste instead of conventional factors.