Note: On Tuesday, October 31, the afternoon session of the Sheet Metal Forming symposium at the TMS/ ASM Materials Week in Cleveland, Ohio, (October 2~No vember 2, 1995) will focus on high·velocity deformation and forming by electromagnetic force.High-velocity metal forming was the focus of much research approximately 30 years ago. It appears that this technology responds well to many of the challenges facing sheet metal forming today: formability is enhanced, springback is minimized, and die tryout time should be minimized.

No abstract

An oxy-acetylene flame, impinging vertically upward on an Si(001) substrate, is systematically examined for morphological variations in the resulting diamond deposits. The flame is operated under near neutral (O2/C2H2 ratio near 1.0) conditions in the unconfined, open atmosphere. Singly twinned crystal morphologies in addition to the usual (001) faceted structures are observed and reported for the first time. Similar morphological variations are observed along the radial as well as the axial (vertical) coordinate directions in the flame. Large changes in morphology are observed for changes in vertical position as small as 50 μm.