Machining Characteristics of AlN-hBN Composites in End-Milling and Precision Lapping Processes

Si Young Beck; Bong Cheol Shin; Myeong Woo Cho; Eun Sang Lee; Dong Sam Park; Dae Jin Yun; Won Seung Cho

doi:10.4028/www.scientific.net/KEM.368-372.947

Paper Titles

Preparation of Microcrystalline CBN Abrasive
p.933

Property and Microstructure of Machinable B₄C/BN Nanocomposites
p.936

Spark Plasma Sintered AlN-BN Composites and its Dielectric Properties
p.940

Micro Pattern Making Method on AlN-hBN Composites Using Powder Blasting Process
p.943

Machining Characteristics of AlN-hBN Composites in End-Milling and Precision Lapping Processes
p.947

Synthesis of SiC_W/(Mo,W)Si₂ Composite by the "Chemical Oven" Self-Propagating Combustion Method
p.951

Microstructure Change of Molybdenum Disilicide Heating Unit in Nitrogen Atmosphere at 1700°C
p.955

Sintering and Properties of MoSi₂ Matrix Composites Reinforced by Carbon Nanotubes
p.958

Wear Behaviors of MoSi₂ at Elevated Temperatures
p.961

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Machining Characteristics of AlN-hBN Composites in End-Milling and Precision Lapping Processes

Abstract:

In this study, the machining characteristics of developed AlN-hBN composites were investigated in the end-milling and precision lapping processes. To achieve the objectives, material properties of the developed AlN-hBN composites were evaluated according to the variation of hBN contents. And, required experimental works were performed to investigate the machining characteristics of the composites. First, the machiniability of the composite was evaluated in the end-milling process under various cutting conditions, such as spindle speed, feederate, and depth of cut variations. Also, generated micro cracks caused by the cutting process were investigated via SEM photographs. Next, precision lapping experiments were performed under various conditions, and the results were estimated.