TurnKey Technologies, Inc. Products

HOT AIR / COLD STAKE


Utilized to join plastic or plastic to metal, forming a permanent, tight assembly. Virtually an unlimited number of stakes can be simultaneously staked, formed, folded, or crimped into a predetermined geometry. This process has a unique benefit to typical heat staking due to the heating elements being contactless, thus eliminating any stringing on plastics prone to this characteristic. Cycle times are quick and the process is extremely consistent. The result is a high production speed, with consistent results and low production cost.

TurnKey Technologies HACS system is a process that reforms a thermoplastic stud into a shape that joins plastic to plastic or, plastic to metal, producing a permanent , tight assembly.  Below is an illustration of the process.



KEY COMPONENTS
As each machine is custom built, the process is extremely versatile. It can stake, fold, form or crimp virtually any application in thermoformed plastics.  With proper planning the resultant stud shapes can be domed, rosette or knurled.











PROCESS

  1. Parts 1 & 2 are nested and then shuttled into position under the manifold.









  2. The manifold is then lowered to engage the nested parts.











  3. Heated air enters the manifold and is directed over the plastic studs on part 2, thus softening the studs.










  4. The stakes are then lowered to the softened studs, and are held in place until the studs have cooled enough to retain their new shape.









  5. The manifold and stakes are then lifted to allow the parts, which are now permanently fastened, to be shuttled back out toward the operator.











RESULTANT WELD
Volume calculations of the pre-staked stud are made. This volume is then transferred into new geometry to the cold stake head. Larger studs having a hollow core can also be processed. The HACS process can be safely used on applications with shielded, plated or metalized surface coatings.






TURNKEY STAKE UNITS

Single Staking Unit

Multiple Custom Staking Unit




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EXAMPLES
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TurnKey Technologies, Inc. ~ 402 Bringle Ferry Rd. Salisbury, NC 28144-4417 ~ 704.245.6437

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