Effect of Substrate Pretreatment Process on the Cutting Performance of Diamond-Coated PCB Micro-Milling Tools

Diamond coatings were deposited on PCB (printed circuit board) carbide milling tool substrates under various schemes of acid and alkali pretreatment by hot filament chemical vapor deposition (HFCVD). Scanning electron microscopy and X-ray coating analysis were used to examine the surface morphology...

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Main Authors: Xiaofan Yang, Huang Li, Haiyang Lin, Yicong Chen, Rongjie Ji
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/14/1/73
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author Xiaofan Yang
Huang Li
Haiyang Lin
Yicong Chen
Rongjie Ji
author_facet Xiaofan Yang
Huang Li
Haiyang Lin
Yicong Chen
Rongjie Ji
author_sort Xiaofan Yang
collection DOAJ
description Diamond coatings were deposited on PCB (printed circuit board) carbide milling tool substrates under various schemes of acid and alkali pretreatment by hot filament chemical vapor deposition (HFCVD). Scanning electron microscopy and X-ray coating analysis were used to examine the surface morphology of the milling tools and the impact of de-cobalt from the substrate surface after pretreatment. Milling experiments were carried out to study the cutting performance of diamond-coated PCB micro-milling tools under various pretreatment processes. The results show that abrasive wear, coating flaking, and cutting-edge chipping are the main failure forms of coated PCB milling tools. The substrate pretreatment process with 20 min of alkali etching followed by 20 s of acid etching allows the diamond-coated micro-milling tools to produce the best film–substrate adhesion and substrate strength. These milling tools also have the longest service lives and are suitable for the high-speed cutting processing of PCB.
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spelling doaj.art-ca2afad3bacf4f42bea973c732a9fed42023-11-30T23:32:51ZengMDPI AGMicromachines2072-666X2022-12-011417310.3390/mi14010073Effect of Substrate Pretreatment Process on the Cutting Performance of Diamond-Coated PCB Micro-Milling ToolsXiaofan Yang0Huang Li1Haiyang Lin2Yicong Chen3Rongjie Ji4College of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen 361021, ChinaCollege of Intelligence Science, National University of Defense Technology, Changsha 410073, ChinaXiamen Wisdom-Top Digital Manufacturing Technology Institute, Xiamen 361100, ChinaXiamen Wisdom-Top Digital Manufacturing Technology Institute, Xiamen 361100, ChinaXiamen Wisdom-Top Digital Manufacturing Technology Institute, Xiamen 361100, ChinaDiamond coatings were deposited on PCB (printed circuit board) carbide milling tool substrates under various schemes of acid and alkali pretreatment by hot filament chemical vapor deposition (HFCVD). Scanning electron microscopy and X-ray coating analysis were used to examine the surface morphology of the milling tools and the impact of de-cobalt from the substrate surface after pretreatment. Milling experiments were carried out to study the cutting performance of diamond-coated PCB micro-milling tools under various pretreatment processes. The results show that abrasive wear, coating flaking, and cutting-edge chipping are the main failure forms of coated PCB milling tools. The substrate pretreatment process with 20 min of alkali etching followed by 20 s of acid etching allows the diamond-coated micro-milling tools to produce the best film–substrate adhesion and substrate strength. These milling tools also have the longest service lives and are suitable for the high-speed cutting processing of PCB.https://www.mdpi.com/2072-666X/14/1/73PCB milling toolCVD diamond coatingpretreatment processtool life
spellingShingle Xiaofan Yang
Huang Li
Haiyang Lin
Yicong Chen
Rongjie Ji
Effect of Substrate Pretreatment Process on the Cutting Performance of Diamond-Coated PCB Micro-Milling Tools
Micromachines
PCB milling tool
CVD diamond coating
pretreatment process
tool life
title Effect of Substrate Pretreatment Process on the Cutting Performance of Diamond-Coated PCB Micro-Milling Tools
title_full Effect of Substrate Pretreatment Process on the Cutting Performance of Diamond-Coated PCB Micro-Milling Tools
title_fullStr Effect of Substrate Pretreatment Process on the Cutting Performance of Diamond-Coated PCB Micro-Milling Tools
title_full_unstemmed Effect of Substrate Pretreatment Process on the Cutting Performance of Diamond-Coated PCB Micro-Milling Tools
title_short Effect of Substrate Pretreatment Process on the Cutting Performance of Diamond-Coated PCB Micro-Milling Tools
title_sort effect of substrate pretreatment process on the cutting performance of diamond coated pcb micro milling tools
topic PCB milling tool
CVD diamond coating
pretreatment process
tool life
url https://www.mdpi.com/2072-666X/14/1/73
work_keys_str_mv AT xiaofanyang effectofsubstratepretreatmentprocessonthecuttingperformanceofdiamondcoatedpcbmicromillingtools
AT huangli effectofsubstratepretreatmentprocessonthecuttingperformanceofdiamondcoatedpcbmicromillingtools
AT haiyanglin effectofsubstratepretreatmentprocessonthecuttingperformanceofdiamondcoatedpcbmicromillingtools
AT yicongchen effectofsubstratepretreatmentprocessonthecuttingperformanceofdiamondcoatedpcbmicromillingtools
AT rongjieji effectofsubstratepretreatmentprocessonthecuttingperformanceofdiamondcoatedpcbmicromillingtools