Material pixel-based process planning for layered manufacturing of heterogeneous objects

Kim, Hong Seok; Shin, Ki Hoon

doi:10.1007/s12541-014-0609-1

Cited by 8 publications

(1 citation statement)

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“…기능성 경사 재료(FGM: functionally graded materials)는 소재 내부의 성분을 연속적으로 변화시켜 다양한 물 성을 가지게 하는 재료 [1,2] 로 사출금형, 공구재료, 광섬유, 의료기 기, 방탄제품 등 다양한 산업분야 [3][4][5] 에서 다가능 제품을 생산하기 위하여 널리 활용되고 있다.…”

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Characterization of Microscale Drilling Process for Functionally Graded M2-Cu Material Using Design of Experiments

Sim¹,

Choi²,

Shin³

et al. 2015

Journal of the Korean Society of Manufacturing Technology Engin

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ARTICLE INFO ABSTRACTArticle history:In this study, a microscale drilling process was conducted to evaluate the cutting characteristics of functionally graded materials. A mixture of M2 and Cu powders were formed and sintered to produce disk specimens of various compositions. Subsequently, a microscale hole was created in the specimen by using a desktop-size micro-machining system. By using design of experiments and analysis of variance, it was found that the M2-Cu composition, spindle speed, and the interactions between these two factors had significant effects on the magnitude of cutting forces. However, the influence of feed rate on the cutting force was negligible. A mathematical model was established to predict the cutting force under a wide range of process conditions, and the reliability of the model was confirmed experimentally. In addition, it was observed that increasing the wt% of Cu in an M2 -Cu specimen increased the high-frequency amplitude of cutting forces.

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