Publication detail

Analysis of the machinability of copper alloy Ampcoloy by WEDM

MOURALOVÁ, K. BENEŠ, L. PROKEŠ, T. BEDNÁŘ, J. ZAHRADNÍČEK, R. JANKOVÝCH, R. FRIES, J. VONTOR, J.

Original Title

Analysis of the machinability of copper alloy Ampcoloy by WEDM

English Title

Analysis of the machinability of copper alloy Ampcoloy by WEDM

Type

journal article in Web of Science

Language

en

Original Abstract

The unconventional technology wire electrical discharge machining is widely used in all areas of industry. For this reason, there is always an effort for efficient machining at the lowest possible cost. For this purpose, the following comprehensive study has been carried out to optimize the machining of the copper alloy Ampcoloy 35, which is particularly useful in plastic injection moulds. Within the study a half-factor experiment of 25-1 with 10 axial points and 7 central points of a total of 33 rounds was carried out, which was focused on the response monitoring of the input factors in the form of the machine parameters setup: gap voltage, pulse on time, pulse off time, discharge current, wire speed. Based on the study of the response in the form of cutting speed and surface topography, their statistical models were created, while the optimal setting of machine parameters was determined to maximize the cutting speed and minimize the topography parameters. Further, a detailed cross-sectional analysis of surface and subsurface layer morphology was performed using electron microscopy including the chemical composition analysis. In order to study microstructural changes in the material at the atomic level, a lamella was created, which was then studied using a transmission electron microscope.

English abstract

The unconventional technology wire electrical discharge machining is widely used in all areas of industry. For this reason, there is always an effort for efficient machining at the lowest possible cost. For this purpose, the following comprehensive study has been carried out to optimize the machining of the copper alloy Ampcoloy 35, which is particularly useful in plastic injection moulds. Within the study a half-factor experiment of 25-1 with 10 axial points and 7 central points of a total of 33 rounds was carried out, which was focused on the response monitoring of the input factors in the form of the machine parameters setup: gap voltage, pulse on time, pulse off time, discharge current, wire speed. Based on the study of the response in the form of cutting speed and surface topography, their statistical models were created, while the optimal setting of machine parameters was determined to maximize the cutting speed and minimize the topography parameters. Further, a detailed cross-sectional analysis of surface and subsurface layer morphology was performed using electron microscopy including the chemical composition analysis. In order to study microstructural changes in the material at the atomic level, a lamella was created, which was then studied using a transmission electron microscope.

Keywords

WEDM; electrical discharge machining; Ampcoloy; design of experiment; machining parameters

Released

11.02.2020

Publisher

MDPI

Location

Švýcarská konfederace

Pages from

1

Pages to

14

Pages count

14

URL

Full text in the Digital Library

Documents

BibTex


@article{BUT162122,
  author="Kateřina {Mouralová} and Libor {Beneš} and Tomáš {Prokeš} and Josef {Bednář} and Radim {Zahradníček} and Róbert {Jankových} and Jiří {Fries} and Jakub {Vontor}",
  title="Analysis of the machinability of copper alloy Ampcoloy by WEDM",
  annote="The unconventional technology wire electrical discharge machining is widely used in all areas of industry. For this reason, there is always an effort for efficient machining at the lowest possible cost. For this purpose, the following comprehensive study has been carried out to optimize the machining of the copper alloy Ampcoloy 35, which is particularly useful in plastic injection moulds. Within the study a half-factor experiment of 25-1 with 10 axial points and 7 central points of a total of 33 rounds was carried out, which was focused on the response monitoring of the input factors in the form of the machine parameters setup: gap voltage, pulse on time, pulse off time, discharge current, wire speed. Based on the study of the response in the form of cutting speed and surface topography, their statistical models were created, while the optimal setting of machine parameters was determined to maximize the cutting speed and minimize the topography parameters. Further, a detailed cross-sectional analysis of surface and subsurface layer morphology was performed using electron microscopy including the chemical composition analysis. In order to study microstructural changes in the material at the atomic level, a lamella was created, which was then studied using a transmission electron microscope.",
  address="MDPI",
  chapter="162122",
  doi="10.3390/ma13040893",
  howpublished="online",
  institution="MDPI",
  number="4",
  volume="13",
  year="2020",
  month="february",
  pages="1--14",
  publisher="MDPI",
  type="journal article in Web of Science"
}