STAKING

Plastic staking is a method of joining components together that uses a molded stud or boss to mechanically retain a mating component. Heat is applied to the boss, softening it. A forming tool is then used to reshape the material into a cap or stake.

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InfraStake

Focused infrared light radially heats the plastic boss and a non-heated punch forms the stake.

Hot Air Cold Punch

Heated air softens the plastic boss and a non-heated punch forms the stake.

Ultrasonic

Metal tool (sonotrode) vibrates against the plastic boss generating frictional heat to melt it and form a stake.

Thermal Punch

Heated metal forming tool melts and forms the plastic boss into a stake.

The InfraStake Process

Clamp

Module is positioned over the molded boss. The face of the concentrator clamps the part directly at the stake point.

Heat

Infrared (IR) lamp is illuminated. Light is focused radially on the plastic boss.

Form

IR lamp is switched off and the non-heated punch forms the semi-molten boss into a stake.

 

Retract

After the plastic has re-solidified, the punch retracts and the module retracts from the part.

Read our blog posts about InfraStake

Extol Launches New InfraStake Module and Software That Reduce Lifetime Operating Cost and Provide Full Quality Assurance

Extol, Inc. has again improved the way plastic products are made by launching the new IS32 InfraStake module and InfraStake Integration Software. This infrared (IR) staking product is designed specifically to stake plastic parts in automotive interiors and door panels. It also works well with other common staking applications, such as electronics and automotive lighting.

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New InfraStake software provides full quality assurance through process monitoring

Extol has developed a new software package that controls the InfraStake process. The InfraStake Integration Software comes free with every integration package to ensure consistency across every integration of the InfraStake technology. The new IS32 module, paired with the InfraStake Integration Software, provides full quality assurance and strong stake joints by monitoring crucial process variables and graphing them for easy interpretation.

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How do you measure temperature during the InfraStake process?

We often get the question, “How do you measure temperature during the InfraStake process?” The answer is, we don’t. There are a few reasons why not, but first, let’s clarify what this question is really getting at: How does the InfraStake process confirm quality results? Furthermore, can monitoring temperature during the InfraStake process guarantee a good part?

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We provide several options to meet many diverse staking equipment needs.

Whether you need a ‘turn-key’ machine or a comprehensive package of components that can be integrated, we’ve got you covered.

The Hot Air Cold Punch Process

Heat

Air passes through a heater and is directed at the boss.

Form

Hot air shuts off and a non-heated forming tool forms the semi-molten boss into a stake. Cooling air passes through the module to cool the stake.

Retract

After the plastic has re-solidified, the forming tool retracts.

The Ultrasonic Staking Process

Heat

A metal tool (sonotrode) vibrates against the boss generating frictional heat.

Form

As the plastic melts, the sonotrode forms the boss into a stake.

Cool

Vibration stops and the sonotrode continues to apply pressure to the stake while it cools.

Retract

After the plastic has re-solidified, the sonotrode retracts.

The Thermal Punch Process

Heat

A hot metal forming tool applies pressure and conducts heat into the boss.

Form

As the plastic melts the hot tool forms the boss into a stake.

Cool

Cooling air is directed at the forming tool, lowering its temperature.

Retract

After the plastic has re-solidified, the forming tool retracts.

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