EVALUATION OF OVERHANG ANGLE IN TIG WELDING-BASED WIRE ARC ADDITIVE MANUFACTURING PROCESS

Journal Title: International journal of research -GRANTHAALAYAH - Year 2019, Vol 7, Issue 10

Abstract

Wire Arc Additive Manufacturing (WAAM) is a relatively new manufacturing method. It is a novel technique to build net-shaped or near-net-shaped metal components in a layer-by-layer manner via applying metal wire and selection of a heat source such as laser beam, electron beam, or electric arc. WAAM process is preferable as an alternative to traditional manufacturing methods especially for complex featured and large scale solid parts manufacturing and it is particularly used for aerospace structural components, manufacturing and repairing of dies/molds. TIG weldingbased WAAM method is implemented by depositing continuous wire melted via heat. In this study, the overhang (self-supporting) angle in TIG welding-based wire arc additive manufacturing process is investigated. The overhang angles are the angles at which a 3D printer can build tapered (overhang) surfaces without the need to supporting material below the printing layer. The material, bead height, TIG weld parameters and the environment temperature (cooling rate of printed layer) are the parameters which affect the overhang angle. The results show that the maximum overhang angle is also dependent on the temperature of the previous layer. For the selected set of process parameters, the maximum overhang angle is found as 28o, if the temperature of the previous layer is cooled to 150oC before the subsequent layer is deposited.

Authors and Affiliations

Keywords

Related Articles

THE IMPACT OF SELF-HELP GROUPS ON THE SOCIO-ECONOMIC DEVELOPMENT OF RURAL HOUSEHOLD WOMEN IN TAMIL NADU - A STUDY

Women empowerment is a process in which women challenge the existing norms and cultural, to effectively promote their well-being. The participation of women in self-help group (SHGs) made a significant impact on their em...

THE ELEMENTS THAT INFLUENCE THE PROFESSIONAL CONDUCT OF TEACHERS INVOLVED IN EARLY EDUCATION

Teachers that work with little children provide the first educational services and constantly have to pay attention to accomplish the educational goals that are suitable for these children. Therefore, they develop, accor...

DISASTER OPERATION READINESS OF THE NUEVA ECIJA SOCIAL WELFARE DEVELOPMENT STAFF

This study aimed to describe the disaster operation readiness level of the staff of the Department of Social Welfare and Development Region III- Nueva Ecija Extension Office. It revealed that the respondents were slightl...

MUTRASHMARI: REVIEW OF LITERATURE

Mutrashmari is a very common disease which includes a complex physiochemical process that involves a series of events in formation of ashmari i.e. stone. Incidence of mutrashmari has raised due to changed standard of liv...

TESL STUDENT-TEACHERS’ PERSPECTIVES OF PRACTICUM PRACTICES IN A MALAYSIAN TEACHER EDUCATION INSTITUTE

This study set to find out the challenges faced by TESL students at a local teacher training institute during their first practicum practices at selected Malaysian primary schools for the 2nd semester of the academic yea...

Download PDF file
  • EP ID EP664387
  • DOI 10.5281/zenodo.3525107
  • Views 134
  • Downloads 0

How To Cite

(2019). EVALUATION OF OVERHANG ANGLE IN TIG WELDING-BASED WIRE ARC ADDITIVE MANUFACTURING PROCESS. International journal of research -GRANTHAALAYAH, 7(10), 247-254. https://europub.co.uk/articles/-A-664387