Title: Additive manufacturing of H13 tooling element with conformal cooling channel using MIG cladding

Authors: Fisseha Legesse; Sajan Kapil; Hari Vithasth; K.P. Karunakaran

Addresses: Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, Powai 400076, India ' Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, Powai 400076, India ' Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, Powai 400076, India ' Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, Powai 400076, India

Abstract: Hybrid layered manufacturing is a synergic integration of additive and subtractive manufacturing processes. It takes the positive aspects of both the processes such as accuracy through subtractive and reduction of material through additive. In this work, The metal inert gas (MIG) cladding has been used for addition and computer numerical control (CNC) milling machining is used for subtraction. The process parameters for MIG cladding of H-13 tool steel material was investigated using Taguchi design of experiment (DOE) method. The effect of different process parameters such as current, torch speed and standoff distance, on weld bead width, height and penetration have been studied using analysis of Variance. This paper describes the methodology of analysing and manufacturing of a die element using H13 tool steel material with a proper conformal cooling channel (CCC) and in-situ preheating process using an induction heating system.

Keywords: HLM; hybrid layered manufacturing; Baffle and Bubbler cooling; MIG cladding; MIG; metal inert gas; in-situ preheating.

DOI: 10.1504/IJRAPIDM.2018.089725

International Journal of Rapid Manufacturing, 2018 Vol.7 No.1, pp.1 - 24

Received: 28 Nov 2016
Accepted: 26 Jun 2017
Published online: 08 Feb 2018 *

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