Improving the precision of micro-EDM for blind holes in titanium alloy by fixed reference axial compensation

During the electrical discharge machining (EDM) process, the tool electrode wear is inevitable, which affects the process precision of the micro-hole. In the present experimental investigation, a fixed reference axial compensation (FRAC) method is proposed to enhance the machining precision of micro...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Lin Chaohui, Li Jiaming, Liang Shiyong, Zhang Yonghui, Gou Junfeng, Liu Jiangwen, Li Yao
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	edm titanium alloy frac method depth deviation roundness factor Technology T Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/2c7d8ecc682b4f618a53b9a49a822c20
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:2c7d8ecc682b4f618a53b9a49a822c20
record_format	dspace
spelling	oai:doaj.org-article:2c7d8ecc682b4f618a53b9a49a822c202021-12-05T14:11:03ZImproving the precision of micro-EDM for blind holes in titanium alloy by fixed reference axial compensation1605-812710.1515/rams-2021-0057https://doaj.org/article/2c7d8ecc682b4f618a53b9a49a822c202021-10-01T00:00:00Zhttps://doi.org/10.1515/rams-2021-0057https://doaj.org/toc/1605-8127During the electrical discharge machining (EDM) process, the tool electrode wear is inevitable, which affects the process precision of the micro-hole. In the present experimental investigation, a fixed reference axial compensation (FRAC) method is proposed to enhance the machining precision of micro-hole. The effect of pulse power, compensation methods, and electrode materials on the depth and roundness factor of micro-hole are explored. The experiment results show that the FRAC method can realize the accurate compensation and reach the expected depth hole processing. When the FRAC is used, the depth deviation is less than 0.43%, and the minimum difference from the expected depth is only 0.106 µm. In addition, the micro-holes of tungsten steel and brass electrodes machine by the FRAC method were close to the expected depth, the difference from the expected depth less than 0.7%, but the bottom of micro-hole produced a cone. However, compared to tungsten steel and brass electrodes, the copper electrode has a better processing performance, the roundness factor is up to 79.8%. When the long-pulse power supply is applied, the expected depth of 400–1,600 µm blind holes with a better processing shape, and the phenomenon of the cone at the bottom are not apparent. Therefore, the proposed FRAC method can be utilized in many high-end manufacturing fields to improve the precision of the micro-hole for micro features.Lin ChaohuiLi JiamingLiang ShiyongZhang YonghuiGou JunfengLiu JiangwenLi YaoDe Gruyterarticleedmtitanium alloyfrac methoddepth deviationroundness factorTechnologyTChemical technologyTP1-1185ENReviews on Advanced Materials Science, Vol 60, Iss 1, Pp 771-783 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	edm titanium alloy frac method depth deviation roundness factor Technology T Chemical technology TP1-1185
spellingShingle	edm titanium alloy frac method depth deviation roundness factor Technology T Chemical technology TP1-1185 Lin Chaohui Li Jiaming Liang Shiyong Zhang Yonghui Gou Junfeng Liu Jiangwen Li Yao Improving the precision of micro-EDM for blind holes in titanium alloy by fixed reference axial compensation
description	During the electrical discharge machining (EDM) process, the tool electrode wear is inevitable, which affects the process precision of the micro-hole. In the present experimental investigation, a fixed reference axial compensation (FRAC) method is proposed to enhance the machining precision of micro-hole. The effect of pulse power, compensation methods, and electrode materials on the depth and roundness factor of micro-hole are explored. The experiment results show that the FRAC method can realize the accurate compensation and reach the expected depth hole processing. When the FRAC is used, the depth deviation is less than 0.43%, and the minimum difference from the expected depth is only 0.106 µm. In addition, the micro-holes of tungsten steel and brass electrodes machine by the FRAC method were close to the expected depth, the difference from the expected depth less than 0.7%, but the bottom of micro-hole produced a cone. However, compared to tungsten steel and brass electrodes, the copper electrode has a better processing performance, the roundness factor is up to 79.8%. When the long-pulse power supply is applied, the expected depth of 400–1,600 µm blind holes with a better processing shape, and the phenomenon of the cone at the bottom are not apparent. Therefore, the proposed FRAC method can be utilized in many high-end manufacturing fields to improve the precision of the micro-hole for micro features.
format	article
author	Lin Chaohui Li Jiaming Liang Shiyong Zhang Yonghui Gou Junfeng Liu Jiangwen Li Yao
author_facet	Lin Chaohui Li Jiaming Liang Shiyong Zhang Yonghui Gou Junfeng Liu Jiangwen Li Yao
author_sort	Lin Chaohui
title	Improving the precision of micro-EDM for blind holes in titanium alloy by fixed reference axial compensation
title_short	Improving the precision of micro-EDM for blind holes in titanium alloy by fixed reference axial compensation
title_full	Improving the precision of micro-EDM for blind holes in titanium alloy by fixed reference axial compensation
title_fullStr	Improving the precision of micro-EDM for blind holes in titanium alloy by fixed reference axial compensation
title_full_unstemmed	Improving the precision of micro-EDM for blind holes in titanium alloy by fixed reference axial compensation
title_sort	improving the precision of micro-edm for blind holes in titanium alloy by fixed reference axial compensation
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/2c7d8ecc682b4f618a53b9a49a822c20
work_keys_str_mv	AT linchaohui improvingtheprecisionofmicroedmforblindholesintitaniumalloybyfixedreferenceaxialcompensation AT lijiaming improvingtheprecisionofmicroedmforblindholesintitaniumalloybyfixedreferenceaxialcompensation AT liangshiyong improvingtheprecisionofmicroedmforblindholesintitaniumalloybyfixedreferenceaxialcompensation AT zhangyonghui improvingtheprecisionofmicroedmforblindholesintitaniumalloybyfixedreferenceaxialcompensation AT goujunfeng improvingtheprecisionofmicroedmforblindholesintitaniumalloybyfixedreferenceaxialcompensation AT liujiangwen improvingtheprecisionofmicroedmforblindholesintitaniumalloybyfixedreferenceaxialcompensation AT liyao improvingtheprecisionofmicroedmforblindholesintitaniumalloybyfixedreferenceaxialcompensation
_version_	1718371410916671488

Improving the precision of micro-EDM for blind holes in titanium alloy by fixed reference axial compensation

Ejemplares similares