Page 43 - MetalForming June 2009

flat construction and a thickness of only 1.7 mm, ideal for installation in end effectors or flat machine parts. The sen- sor features a stainless-steel housing that allows application in harsh envi- ronments as well as a flexible sensor cable that resists extreme flexural loads. With a weight of only 3 g, the sensor promis- es low G forces even at high accelerations. Vacuum-rated versions are available. STM Sensors Inc.: 419/841-0135; www.stmsensors.com
Magnetic-Inductive Sensors Detect Weld Nuts
Turck, Minneapolis, MN, has debuted magnetic-inductive sensors for detection of weld nuts. The sensors use signal atten- uation to detect ferromagnetic components such as nuts, bushings and spacer sleeves, and ensure that these compo- nents are present prior to robotic weld- ing without the need for additional soft- ware or electronics. The sensors can be easily integrated into existing production
to galling and adhesive wear. In cold-work applications such as the forming of advanced high-strength steels, as well as stainless and mild steels, galling and adhesive wear often are the dominating tool-failure mechanisms. This also can be the case in powder compacting, cold extrusion, deep drawing and blanking.
Typically, metalformers increase galling resistance of their tools by investing in
nitriding the tool or by applying sur- face coatings such as CVD or PVD. Van- cron 40 eliminates these processes. The steel is alloyed with nitrogen, which creates an integrated surface coating and a tool surface with very low friction that improves a tool’s resistance to galling or cladding and adhesive wear. Bohler-Uddeholm Corp.: 630/883-3000; www.bucorp.com
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lines, replacing traditional location bolts as well as optical systems that can mal- function due to residue and changing lighting conditions.
Turck: 800/544-7769; www.turck.us
PM Steel Battles Persistent Tool-Wear Problems
Bohler-Uddeholm Corp., Elgin, IL, introduces Uddeholm Vancron 40, a powder-metal tool steel offering low fric- tion properties and excellent resistance
www.metalformingmagazine.com
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