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Ju-Yeop Shin(신주엽),Hyeong-Jong Lim(임형종),Hang-Seo Lee(이항서),Han-Sub Kim(김한섭),Hyun-Chul Jung(정현철),Kyeong-suk Kim(김경석) 한국기계가공학회 2020 한국기계가공학회지 Vol.19 No.1
The spacer, which is located between the bucket and the arm of an excavator, has a role in preventing damage to the excavator arm during excavation work. When the durability of the spacer is increased, the lifetime of the arm can be extended and the processing costs can be reduced. To increase the durability of the spacer, tungsten carbide (WC) coating was applied on the surface of a spacer using the plasma transferred arc (PTA) process. The confirm the durability, a wear test using a pin-on disk type of wear testing machine was done under the given conditions and the wear amount on the surface of a tested specimen was measured using reflective digital holography. The results were compared with that of ALPHA-STEP.