TY - GEN
T1 - Study on the tool path generation of an automotive headlamp reflector in ultra-precision raster milling
AU - To, Suet
AU - Wang, Hao
AU - Li, Bing
AU - Cheung, Chi Fai
AU - Wang, Su Juan
PY - 2006/12/1
Y1 - 2006/12/1
N2 - 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.
AB - 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.
KW - Automotive headlamp reflector
KW - Gouge-free tool path
KW - Ultra-precision raster milling
UR - http://www.scopus.com/inward/record.url?scp=38949145769&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
SN - 0878494219
SN - 9780878494217
T3 - Materials Science Forum
SP - 673
EP - 676
BT - Advances in Materials Manufacturing Science and Technology II - Selected Papers from the 12th International Manufacturing Conference in China
T2 - 12th International Manufacturing Conference in China, IMCC2006
Y2 - 21 September 2006 through 23 September 2006
ER -