June 12, 2007
By: Hyunok Kim
The ERC/NSM conducted extensive deep-drawing tests to evaluate various dry film lubricants for several companies. Compared with other commonly used friction tests such as draw bead and twist compression tests, deep drawing emulates realistic friction conditions that exist in stamping operations in terms of the pressure and forming speed interface .
The PIPE-MAX is a combination grinder and pipe belt sander. The front hard rubber contact roller drives the abrasive belt to grind flat surfaces. It removes weld seams in a straight line, without leaving edges or a wavy finish. For sanding pipes or handrails, the sanding belt follows every contour to grind and polish up to a high-gloss finish. Ideal for stainless steel, aluminum and high-quality metals.
Hands-on information, real-world applications, and down-to-earth practical advice for welders. Subscriptions are free to qualified welding professionals in North America.