Product category:
CNC punching and profiling
News Release from: Wilson Tool International | Subject: Wilson Tool High Torque Fastener system
Edited by the Manufacturingtalk Editorial
Team on 10 January 2002
Threading tool developed for CNC punch
presses
A special threading tool for use on computer controlled punch presses will allow high torque thread-based fasteners to be used on sheet metal assembly.
A special threading tool for use on computer controlled punch presses developed by Wilson Tool International of Swindon will allow high torque thread-based fasteners to be used on sheet metal assembly The new threading system avoids the need for additional operations such as the welding of nuts, use of inserted nuts or captive nut devices and any subsequent finishing operations
This article was originally published on Manufacturingtalk on 20 Jun 2001 at 8.00am (UK)
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The screw profile of the Wilson Tool High Torque Fastener system is designed to achieve maximum engagement of the sheet metal to the screw thread.
It can provide designers of components such as electrical cabinets and panels, wall cladding panels, office furniture and display-type racking with the opportunity to reduce the size of fastening devices due to the strength of the deformed material to make up the female thread.
As part of the operation, space for an integral seal or rubber gasket can be provided as well as notches for 'point of earth' wiring connection.
The threading operation involves using a piercing tool held in the punch press to produce the profile and the material being deformed into the appropriate helical shape to suit the screw thread.
The pitch of the thread is set relative to the thickness of the material and when the screw is inserted during assembly, the material is automatically pulled-back into the screw thread to provide maximum engagement and therefore strength to the fixing.
Screw threads can be produced between M3 and M10 in combinations to suit material thickness from 0.5mm to 2mm.
Most commercial coatings up to 15 micron thickness can also be accommodated.
Samples can be provided by Wilson Tool in conjunction with application engineering advice from the technical centre in Swindon.
(This was Manufacturingtalk's Top Story on 9 January 2002).
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