APPLICATION TECHNOLOGY
Innovative Soyer stud welding equipment
The search for unique selling points continues to drive Heinz Soyer Bolzenschweißtechnik GmbH, a German specialist for fastening and joining technology, towards the development of product innovations.
PS-9 stud welding gun. Thanks to the multi-coloured traffic light LED display system on the welding gun, the operator is now able to identify at a glance when the stud welding system is ready for operation and when there is a problem.
T T
hese press-in studs match the requirements profile of the company, which specialises in the full scope of kinematic sub-assemblies and hinges in the passenger car seating area.
According to Reinhard Gruber, sales manager of the
automotive division of Alpirsbach based Hetal-Werke: “The anticipated use of lighter materials, such as magnesium, fibre- reinforced composites such as carbon, or high-strength steel in car construction requires fastener systems that ideally provide better joint quality at lower cost.” With their triangular shape, Arnold Umformtechnik says that
its TriPress press-in studs provide the answer to this cost/benefit dilemma. They are polygonal fast-assembly components that can be pressed into plastic and light metal materials. The cost savings result from the process. The number of
manufacturing operations is dramatically reduced compared to the welded-stud option, and cycle times are shortened. The triangular shank and longitudinal knurling provide high
Furthermore the PS-9 welding gun is equipped with an innovative and adjustment-free stud chuck (patent application: DE
102010 001 629.2). For the first time there is no need to change chucks when using different stud lengths from 6mm - 40mm. “Besides improving the welding quality of welded joints, the new BMS-9 stud welding equipment also helps users to save
time and work more efficiently.” Heinz Soyer’s innovative stud welding equipment will be exhibited at the 2012 Fastener Fair in Bangkok, Thailand.
www.soyer.com
Hetal-Werke tests Arnold ATP studs Arnold Umformtechnik are expected to be used in place of conventional weld-on studs.
he idea of developing a stud welding device with a gun which can be used to identify important operating conditions was realised in the form of the innovative BMS-9 stud welding device and the corresponding
The automotive division of Hetal-Werke, located in Alpirsbach, Germany, is intensively looking for alternatives to conventional joint technologies. In the future, ATP®
TriPress fasteners from
resistance to fastener stripping in permanent joints, such as for seat rail adapters. Circumferential locking grooves on the shank also provide a high pull-out strength. Arnold Umformtechnik points out that eliminating the
thermal stresses resulting from stud welding reduces the effort necessary for material inspections, which yields cost savings of around 50 percent for this cost item alone. The environmental impact, such as noise and vapour emissions, is also reduced, along with the associated protective measures. In addition, the reject rate in production is sustainably lower due to the purely mechanical nature of the process. “Experience from the use of ATP®
TriPress fasteners indicates
potential cost savings of around 80 percent compared with using weld-on studs. At the same time, joint quality is improved and the process allows different types of materials to be assembled quickly and economically. These are all convincing arguments for the specialists at Hetal-Werke.”
New A4 high resistance rivets
SARIV has designed and produced a brand new high resistance rivet in A4 material, offering the right combination for all the marine applications where A2 material is inadequate to ensure required mechanical and corrosion-resistance characteristics.
S
ARIV explains that a 4-side crimping and a higher mandrel resistance makes the new high resistance rivet easy to set and extremely solid in application. The body is produced in stainless steel 316Cu and the mandrel in 316, which SARIV says gives the rivet a corrosion resistance well over 20% higher than the values reached with A2 material. The dimension 4.0 x 7, which suits small grip applications, is already a stock item.
www.sariv.it 126 Fastener + Fixing Magazine • Issue 76 July 2012
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