PRODUCTS
FASTENINGS & ADHESIVES
SELF-EXTRUDING THREAD FORMING SCREW CAN BE
EASILY REMOVED AND REUSED
TR Fastenings has relaunched its patented EPW self-extruding thread-forming screw. A revolutionary fastening solution, the EPW creates its own internal thread in thin sheet metal, and is engineered to significantly cut assembly time and cost. The EPW screw can be easily installed by hand with an
electric screw driver. It works by aligning to the pilot hole in the sheet metal, forming an extruded collar and creating a robust thread profile before tightening and clamping securely, all in one easy step. This can also be easily removed and is fully reusable; offers
excellent vibration resistance to keep the assembly secure; offers high radial compression on the screw thread for a superior hold; is lightweight, practical and strong; and is suitable for electrical earth connections. Surface coatings include standard zinc plating, highly
DELO PROVES THE FEASIBILITY OF ADHESIVES AS SOLDERING ALTERNATIVES FOR miniLEDs
The display industry still relies heavily on solder materials for interconnecting SMD components. However, as dice get smaller and smaller, with miniLED applications entering mass production and microLEDs on the horizon, isotropic conductive materials like solder will soon be unable to avoid short circuits in this scale. This observation prompted DELO Industrial Adhesives to study the feasibility of
their products as a potential alternative for this dated interconnection method. The company determined that materials like DELO MONOPOX AC268 were the
most appropriate of their products to test. This material is electrically conductive in one direction, helping it prevent short circuits from occurring. In the feasibility study, the adhesive was applied by dipping the miniLED light into
a reservoir of DELO MONOPOX AC268 adhesive, then thermode-cured at 180˚C for 20 seconds. Once cured, the LED dice were then tested for operational feasibility; one singular die was fixed to one test board while another board contained several lights in a daisy chain array. Lamps on both boards illuminated without issue, short circuits being successfully avoided. “These results prove that, indeed, adhesives are a suitable alternative to pick-and-place soldering for miniLED applications,” said Tim Cloppenborg, senior product manager for LED at DELO. “Having a new, streamlined assembly process opens doors to increased production yields as well as the expedition of newer technologies, like microLEDs, which will enable fascinating new display applications within the next decade.”
DELO Industrial Adhesives
www.delo-adhesives.com/
An external safety interlock option for vertical ball screw applications has been introduced by Thomson Industries. The SFM safety nut is a secondary nut designed to hold a vertical load if the primary system fails. The SFM safety nuts thread onto the screw
SAFETY NUT FOR VERTICAL BALL SCREW APPLICATIONS said Ojesh Singh, product manager at Thomson.
below the travelling nut. During normal operation, it carries no load and has no contact with the screw threads. If there is increased axial play in the nut above specification, however, its negative thread will contact the screw thread, creating friction that will hold the load and prevent harm to nearby workers or equipment. Safety nuts are especially valuable where human safety is at risk, such as patient tables, stage constructions, work platforms and airport
people movers. Thomson offers safety nuts installed at the factory, but they can also be added at any time after shipment. The external flanged SFM safety nuts are available in a wide variety of standard dimensions capable of handling loads up to 450 kN. Integrated safety nuts (flanged and cylindrical) and customised options are available outside of the standard product offering upon request. “System designers implement ball screws for
their excellent low-friction capability, but if the load-carrying nut travelling on the screw fails, the load can drop, presenting a possible hazard to both workers and machines. Our SFM safety nuts help prevent this precarious situation by taking over the load if the traveling nut cannot,”
36 DESIGN SOLUTIONS NOVEMBER 2024
Thomson Industries
www.thomsonlinear.com
corrosion resistant zinc nickel and organic zinc flake. The EPW offers cost-effective solutions to users, thanks to
its versatility of use, ease of installation and reliability. It can be used for a variety of materials, including steel (0.4-1mm thick) and aluminium (0.4-1.5mm thick), complementing an already comprehensive product range that includes self- clinch fasteners, blind rivets, welding products and more. Suitable applications are in the HVAC, automotive,
electronics, medical and telecoms industries. Enrico DeAngelis, engineering manager at the TR Italy
manufacturing facility, commented: “The EPW screw represents a significant commitment on our part to provide the finest possible product designs allied to the very best in quality, functionality and versatility. Relaunching this fastener now is perfect timing as customers are coming to us for more cost- effective solutions for thin sheet metal. The success that we feel this product will bring is due to a culmination of factors, including of course the investment that TR has made.”
TR Fastenings
www.trfastenings.com/
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