CAJ | 학술논문

镍基合金渐变曲率风口法兰产品形状特殊、尺寸较大、材料拉深困难。在冲压成型加工过程中，通过物理气相沉积（ PVD）技术对模具材料实施表面改性处理，拉伸、翻边成型过程中精确控制压边力，以及成型过程中对半成品进行消除应力的处理，从而实现产品精密成型，确保产品外观、尺寸精度及形位公差的要求。
얼기합금점변곡솔풍구법란산품형상특수、척촌교대、재료랍심곤난。재충압성형가공과정중，통과물리기상침적（ PVD）기술대모구재료실시표면개성처리，랍신、번변성형과정중정학공제압변력，이급성형과정중대반성품진행소제응력적처리，종이실현산품정밀성형，학보산품외관、척촌정도급형위공차적요구。
Product of Ni-based alloy gradient curvature air inlet flange is difficult to deep stretching processing due to its spe-cial shape and large size.In stamping forming process, physical vapor deposition ( PVD) technique is used in die material surface modification, pressure-pad-force is controlled accurately during process of deep stretching and flanging forming, and stress relief treatment is required on semi-finished product during the forming process.Thus precise forming of product is real-ized, so the appearance of product, the size precision and the geometric tolerance are guaranteed to meet requirements.