Review on heat affected zone (HAZ) in laser machining

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dc.contributor.advisor	Kalla, Devi Kiran
dc.contributor.author	Abedin, Farhana
dc.date.accessioned	2010-09-23T14:42:06Z
dc.date.available	2010-09-23T14:42:06Z
dc.date.issued	2010-04-23
dc.identifier.citation	Abedin, F. (2010). Review on heat affected zone (HAZ) in laser machining. -- In Proceedings: 6th Annual Symposium: Graduate Research and Scholarly Projects. Wichita, KS: Wichita State University, p. 63-64	en
dc.identifier.uri	http://hdl.handle.net/10057/3180
dc.description	Paper presented to the 6th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, April 23, 2010.	en
dc.description	Research completed at the Department of Mechanical and Industrial Engineering, College of Engineering	en
dc.description.abstract	Laser machining being a non-contact process possesses several advantages such as no tool wear or damage and no contact force induced problems. Laser cutting involves thermal process and it does not depend on the strength and hardness of the work piece, thus making it ideal for cutting non-homogeneous material. In this research work several papers related to the heat affected zone (HAZ) of laser machining of CFRP and GFRP are reviewed. It was found that laser parameters such as specific laser energy, laser power, repetition rate, work piece temperature determine the extent of HAZ. In CFRP HAZ in perpendicular laser grooving is much higher than that in parallel grooving. Presence of nitrogen jet decreases the work piece temperature leading to lower HAZ. Observations of the HAZ area of CFRP material revealed fiber swelling of 50 or 60% and fibers near the top are seen to curl up. In case of GFRP charred black material called shell and melted glass fibers are observed in the HAZ. It is also observed that the extent of HAZ affect the static tensile and bending strengths of CFRP. Tensile strength reduces linearly as HAZ increases. A comparison of laser cutting on CFRP using three types of laser is also presented here. Nd:YAG laser cutting on CFRP at optimized parameters has produced least HAZ and highest bending strength.	en
dc.format.extent	105145 bytes
dc.format.extent	1843 bytes
dc.format.mimetype	application/pdf
dc.format.mimetype	text/plain
dc.language.iso	en_US	en
dc.publisher	Wichita State University. Graduate School	en
dc.relation.ispartofseries	GRASP	en
dc.relation.ispartofseries	v.6	en
dc.title	Review on heat affected zone (HAZ) in laser machining	en
dc.type	Conference paper	en