Polishing of Ductile Cast Iron with Scan-Head Guided Fiber Laser

Eneko Ukar; Aitzol Lamikiz; Silvia Martinez; Iván Tabernero

doi:10.4028/www.scientific.net/MSF.797.151

Paper Titles

Selection of the Optimal Distribution for the Upper Bound Theorem in Indentation Processes
p.117

Boundary Element Method Applied to Electroforming Process
p.125

Electrolyte Effect on the Surface Roughness Obtained by Electropolishing of AISI 316L Stainless Steel
p.133

Energy Efficient Heat Treatment Process Design and Optimisation
p.139

Parametric Modeling and Compensation of Layer Manufacturing Machines
p.145

Polishing of Ductile Cast Iron with Scan-Head Guided Fiber Laser
p.151

Surface Quality Analysis in Selective Laser Melting with CoCrMo Powders
p.157

Surface Quality Improvement and Tool Footprint Analysis in a Robotic Grinding Cell
p.163

Technical Evaluation of Structural Adhesive Joints under Adverse Operation Conditions
p.169

HomeMaterials Science ForumMaterials Science Forum Vol. 797Polishing of Ductile Cast Iron with Scan-Head...

Polishing of Ductile Cast Iron with Scan-Head Guided Fiber Laser

Abstract:

Present work deals with laser polishing process on GGG70L spheroidal cast iron, which is widely used in die making for the automotive industry. Free graphite in the structure of GGG70L makes difficult the polishing and surface roughness reduction because the high melting temperature. In this work a complete study is presented, where main process parameters are identified and free graphite is eliminated from surface. The quantification of surface improvement is presented in terms of resulting surface roughness, hardness, and heat affected layer thickness. Thus, using optimal parameters, laser polishing with 2D scan head gives satisfactory results on GGG70L cast iron with roughness reduction rates up to 80% and minimum mean roughness R_a of 0.5 μm.

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Periodical:

Materials Science Forum (Volume 797)

Pages:

151-156

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.797.151

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Online since:

June 2014

Authors:

Eneko Ukar*, Aitzol Lamikiz, Silvia Martinez, Iván Tabernero

Keywords:

Cast Iron, Finishing Operation, Laser Polishing, Stamping Die

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