{"title":"金属粉末预制件冷锻变形特性及断裂机理","authors":"A.K. Jha , S. Kumar","doi":"10.1016/0020-7357(86)90029-6","DOIUrl":null,"url":null,"abstract":"<div><p>The paper reports on an investigation into the various aspects of cold forging of iron powder preforms which have been compacted and sintered from atomised iron powder. The influence of particle size, compacting pressure, sintering temperature and forging parameters on relative density of the preform was investigated. Experiments were conducted and measurements were made on the development of barrelling and strain variations at the free surface. Cracks were also observed at the free surface of the perform. The deformation characteristics and fracture mechanism is discussed critically to illustrate the interaction of various parameters involved and the results are presented graphically.</p></div>","PeriodicalId":100704,"journal":{"name":"International Journal of Machine Tool Design and Research","volume":"26 4","pages":"Pages 369-384"},"PeriodicalIF":0.0000,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-7357(86)90029-6","citationCount":"23","resultStr":"{\"title\":\"Deformation characteristics and fracture mechanisms during the cold forging of metal powder preforms\",\"authors\":\"A.K. Jha , S. Kumar\",\"doi\":\"10.1016/0020-7357(86)90029-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The paper reports on an investigation into the various aspects of cold forging of iron powder preforms which have been compacted and sintered from atomised iron powder. The influence of particle size, compacting pressure, sintering temperature and forging parameters on relative density of the preform was investigated. Experiments were conducted and measurements were made on the development of barrelling and strain variations at the free surface. Cracks were also observed at the free surface of the perform. The deformation characteristics and fracture mechanism is discussed critically to illustrate the interaction of various parameters involved and the results are presented graphically.</p></div>\",\"PeriodicalId\":100704,\"journal\":{\"name\":\"International Journal of Machine Tool Design and Research\",\"volume\":\"26 4\",\"pages\":\"Pages 369-384\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1986-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0020-7357(86)90029-6\",\"citationCount\":\"23\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Machine Tool Design and Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0020735786900296\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Machine Tool Design and Research","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0020735786900296","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Deformation characteristics and fracture mechanisms during the cold forging of metal powder preforms
The paper reports on an investigation into the various aspects of cold forging of iron powder preforms which have been compacted and sintered from atomised iron powder. The influence of particle size, compacting pressure, sintering temperature and forging parameters on relative density of the preform was investigated. Experiments were conducted and measurements were made on the development of barrelling and strain variations at the free surface. Cracks were also observed at the free surface of the perform. The deformation characteristics and fracture mechanism is discussed critically to illustrate the interaction of various parameters involved and the results are presented graphically.
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