表面技术
錶麵技術
표면기술
Surface Technology
2015年
9期
140-146,152
,共8页
表面完整性%表面状态%表面性能%加工工艺%表征模型
錶麵完整性%錶麵狀態%錶麵性能%加工工藝%錶徵模型
표면완정성%표면상태%표면성능%가공공예%표정모형
surface integrity%surface texture%surface properties%processing technique%description model
疲劳失效是金属结构失效的重要形式之一，提高零件疲劳性能可以有效增加结构使用寿命。对于低周和高周疲劳，绝大多数疲劳裂纹萌生于零件表面。因此，表面完整性对金属材料疲劳行为有重要影响。简述了表面完整性的内涵，指出表面完整性不仅包括如粗糙度、波纹度、表面裂纹等的表面形貌特征，也包含如加工之后零件表面的残余应力、塑性变形、组织形貌等物理化学变化特征。总结了表面完整性工艺的研究现状，说明机械铣削、电火花线切割、磨削、喷丸强化、光饰等加工工艺对表面完整性的影响。综述了表面完整性表征模型的建立，指出各表面完整性特征参数对表面完整性影响的比重。分析了国内表面完整性发展趋势，指出表面完整性工艺研究与表面完整性表征模型相互促进的作用，提出表面完整性工艺与表面完整性表征模型的交叉研究。最后，对提高表面完整性及建立影响表面完整性的参数模型提出了建议。
疲勞失效是金屬結構失效的重要形式之一，提高零件疲勞性能可以有效增加結構使用壽命。對于低週和高週疲勞，絕大多數疲勞裂紋萌生于零件錶麵。因此，錶麵完整性對金屬材料疲勞行為有重要影響。簡述瞭錶麵完整性的內涵，指齣錶麵完整性不僅包括如粗糙度、波紋度、錶麵裂紋等的錶麵形貌特徵，也包含如加工之後零件錶麵的殘餘應力、塑性變形、組織形貌等物理化學變化特徵。總結瞭錶麵完整性工藝的研究現狀，說明機械鐉削、電火花線切割、磨削、噴汍彊化、光飾等加工工藝對錶麵完整性的影響。綜述瞭錶麵完整性錶徵模型的建立，指齣各錶麵完整性特徵參數對錶麵完整性影響的比重。分析瞭國內錶麵完整性髮展趨勢，指齣錶麵完整性工藝研究與錶麵完整性錶徵模型相互促進的作用，提齣錶麵完整性工藝與錶麵完整性錶徵模型的交扠研究。最後，對提高錶麵完整性及建立影響錶麵完整性的參數模型提齣瞭建議。
피로실효시금속결구실효적중요형식지일，제고령건피로성능가이유효증가결구사용수명。대우저주화고주피로，절대다수피로렬문맹생우령건표면。인차，표면완정성대금속재료피로행위유중요영향。간술료표면완정성적내함，지출표면완정성불부포괄여조조도、파문도、표면렬문등적표면형모특정，야포함여가공지후령건표면적잔여응력、소성변형、조직형모등물이화학변화특정。총결료표면완정성공예적연구현상，설명궤계선삭、전화화선절할、마삭、분환강화、광식등가공공예대표면완정성적영향。종술료표면완정성표정모형적건립，지출각표면완정성특정삼수대표면완정성영향적비중。분석료국내표면완정성발전추세，지출표면완정성공예연구여표면완정성표정모형상호촉진적작용，제출표면완정성공예여표면완정성표정모형적교차연구。최후，대제고표면완정성급건립영향표면완정성적삼수모형제출료건의。
Fatigue failure is one of the important forms of metal structure failure. Improving the fatigue performance of parts can effectively increase the life of structure. For low and high cycle fatigue, the majority of the fatigue cracks are born on the sur-face of the parts. Therefore, the surface integrity has important influence on the fatigue behavior of metal materials. The connota-tion of surface integrity was briefly introduced in this review, pointing out that surface integrity does not only include the surface characteristics such as roughness, waviness and surface crack, but also the physical and chemical characteristics such as surface residual stress, plastic deformation and microstructure of the processed parts. The current research status of surface integrity process was summarized, showing the effects of mechanical milling, wire-electrode cutting, grinding, shot peening, and light deco-ration on the surface integrity. The building of description models for surface integrity was overviewed. The importance of every ele-ment to the surface integrity was pointed out. The domestic development trends of surface integrity were analyzed. It was pointed out that process technology of surface integrity and surface integrity characterization model promote each other, and interdisciplinary research on surface integrity process and surface integrity description model was proposed. Finally, suggestions were put forward to improve the surface integrity, and to establish the model of surface integrity.
