Title

Mass Removal And Hole Profile Characteristics For Drilling Using Continuous And Pulsed Lasers

Abstract

An experimental study was performed to compare the drilling effectiveness of using a 50 W CO2 laser in continuous and pulsed modes for drilling holes in methyl methacrylates. Various power levels and exposure times were used to drill into 1/2 inch samples. Drilling effectiveness was defined as the mass removal by vaporization per unit energy delivered to the material. Power levels and exposure times were measured and thermocouples were used to record plastic temperatures at the burn edge and behind the sample. Samples were weighted before and after irradiation to measure mass removal. After laser irradiation, the samples were cut and the hole depth and radius were measured to determine the hole profile. A comparison was made for continuous mode between experimentally measured hole profiles and mass removal rates and those predicted from computer simulation.

Publication Date

1-1-1990

Publication Title

American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD

Volume

135

Number of Pages

117-123

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0025228295 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0025228295

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