Study on the tool path generation of an automotive headlamp reflector in ultra-precision raster milling

Suet To, Hao Wang, Bing Li, Chi Fai Cheung, Su Juan Wang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)

Abstract

Nowadays faceted reflector design has become popular in automotive illumination systems. The advantage of a compound surface enables it to achieve the required hot spot intensity by directing more than 60% of the generated light towards the road, thereby largely illuminate the area through the aperture. The research is oriented to fabricating the mold insert on ultra-precision raster milling (Freeform 705G). In this paper, the tool path generation method for automotive headlamp reflectors is studied, and a practical gouging detection and avoidance algorithm is proposed. The surface roughness and form accuracy (peak-to-valley height) are then calculated theoretically using mathematical formulae. Through the tool path generation of a small but representative surface patch with a gap, a possible way is finally found to generate the tool path for such a class of freeform surface with special equipment.
Original languageEnglish
Title of host publicationAdvances in Materials Manufacturing Science and Technology II - Selected Papers from the 12th International Manufacturing Conference in China
Pages673-676
Number of pages4
Publication statusPublished - 1 Dec 2006
Event12th International Manufacturing Conference in China, IMCC2006 - Xi'an, China
Duration: 21 Sep 200623 Sep 2006

Publication series

NameMaterials Science Forum
Volume532-533
ISSN (Print)0255-5476

Conference

Conference12th International Manufacturing Conference in China, IMCC2006
Country/TerritoryChina
CityXi'an
Period21/09/0623/09/06

Keywords

  • Automotive headlamp reflector
  • Gouge-free tool path
  • Ultra-precision raster milling

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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