FOCUS ON WELDING
other method ,” he continued . To reach such capacities , the projection press has an extremely high electrode force . While this was still generated pneumatically in the first system from 2006 , the machine commissioned in 2013 is equipped with a hydraulic drive . The system currently being produced , which will be commissioned in a few months , will also utilise this drive technology . The hydraulics are now controllable in this process , which allows force profiles to be set .
“ This , in turn , enables fully hydraulic and fast redressing which is unique in the market so far ,” explained Ramb . The highly dynamic system can weld the projections while avoiding the associated spattering caused by force-fit redressing .
Various guide bars for chain saws are made from this steel strip in STIHL rail production .
High levels of automation
“ This new development , as well as the welding technology used so far , is proof that we have the right partner on our side ,” emphasized STIHL project manager , Steegmaier . “ NIMAK ’ s decades-long experience in resistance welding technology and expertise in automation have proved to be invaluable .”
NIMAK ’ s affiliation with the TÜNKERS Group go beyond the diverse range of automation solutions it has developed over the years ( including robot welding cells , rotary transfer systems and linear transfer systems ).
“ Thanks to this group of companies , we can purchase most of the components required for automation at particularly attractive prices and even influence their development and adaptation to our own needs . In addition , this provides security for our supply chains ,” NIMAK told ISMR .
“ These are all advantages from which we also benefit as a customer ,” added Steegmaier .
An eye on the future
The STIHL Group ’ s founder , Andreas Stihl , developed his first chainsaw in 1926 . Since its foundation more than 90 years ago , the STIHL Group has grown from a one-man business into a global chainsaw and outdoor power
The STIHL Group has grown from a one-man business into a global chainsaw and outdoor power equipment manufacturer .
Projection welding in focus
NIMAK ’ s projection welding machines feature completely rigid , torsion-free base-frames , steel construction and massive press tables with T-slots for mounting the welding fixture . They are individually configurable via the modular system and options include alternating current technology , a medium frequency version or a capacitor discharge machine . Drive options include pneumatic , hydraulic or servomotors as well as ‘ magneticDRIVE ’ ( full flexibility , force and dynamics of an electromagnet ).
Table-top or floor versions of the machines are available , as well as a space-saving C-module for welding cells . With over 50 years of experience , NIMAK develops , designs and manufactures most of the various components of the modular system itself . Depending upon welding requirements , individually adapted appliances and special tools also supplement the projection welding machines .
34 | ismr . net | ISMR June 2023