TY - CHAP

T1 - Machining of hybrid reinforced Mg-MMCs using abrasive water jetting

AU - Aust, E.

AU - Elsäßer, M.

AU - Hort, N.

AU - Limberg, W.

N1 - Conference code: 135

PY - 2006

Y1 - 2006

N2 - Magnesium based Metal Matrix Composites (MMCs) reinforced by a combination of short Al2O3-fibres and SiC-particles are promising construction materials due to the low density and thermal expansion, high creep and wear resistance. Such a material is the hybrid reinforced magnesium alloy AE42, which is produced by the melt infiltration of fibre-particle preforms in the squeeze casting process. Many problems arise by machining these preforms with common machining tools because of the high wear resistance caused by the ceramic reinforcement. Solutions are only expensive tools with cutting edges made of polycrystalline diamonds or CVD-diamond coatings. This work is focussed on the application of abrasive water jet cutting for machining these wear resistant MMCs. Cutting tests were performed at MMC-specimens with thickness of 2 - 25 mm. Experimental results are presented which clearly indicate the high potential and efficiency of the abrasive water jet for machining MMCs.

AB - Magnesium based Metal Matrix Composites (MMCs) reinforced by a combination of short Al2O3-fibres and SiC-particles are promising construction materials due to the low density and thermal expansion, high creep and wear resistance. Such a material is the hybrid reinforced magnesium alloy AE42, which is produced by the melt infiltration of fibre-particle preforms in the squeeze casting process. Many problems arise by machining these preforms with common machining tools because of the high wear resistance caused by the ceramic reinforcement. Solutions are only expensive tools with cutting edges made of polycrystalline diamonds or CVD-diamond coatings. This work is focussed on the application of abrasive water jet cutting for machining these wear resistant MMCs. Cutting tests were performed at MMC-specimens with thickness of 2 - 25 mm. Experimental results are presented which clearly indicate the high potential and efficiency of the abrasive water jet for machining MMCs.

KW - Abrasive water jet

KW - Jet cutting

KW - Magnesium alloy AE42

KW - Metal Matrix Composites

KW - MMC

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=33646159954&partnerID=8YFLogxK

M3 - Article in conference proceedings

AN - SCOPUS:33646159954

SN - 0873396200

SN - 9780873396202

T3 - Magnesium Technology

SP - 345

EP - 349

BT - Magnesium Technology 2006

A2 - Luo, Alan A.

A2 - Neelameggham, Neale R.

A2 - Beals, Randy S.

PB - The Minerals, Metals & Materials Society

T2 - 135th TMS Annual Meeting 2006

Y2 - 12 March 2006 through 16 March 2006

ER -