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Heatstaking machines are beneficial when joining two parts that consist of different material which cannot normally be ultrasonically welded.

Features

  • Although each machine is custom built for its specific application, the following information details typical machine features.
  • Rugged, tubular steel frame construction using the highest quality components
  • Safety guarding
  • HMI /MMI process controls provide easy set up and repeatability of control.
  • Quick disconnect heater elements
  • Palm buttons and emergency stop
  • Controlled air flow
  • Heater Burnout Alarms (optional)
  • Closed loop systems for process monitoring (optional)
  • Light Screens for protection (optional)
  • Touch Screens (optional)
  • Digital timer for weld time and post-cool
  • Auto & Manual Setup mode head down for probe alignment with component
  • Prewired and preprogrammed for optional slide kits, post cool, and fixture clamping.
  • LVDT for slide conformation (optional)


Benefits

  • Cost effective
  • Short Cycle Times
  • Tight Assemblies
  • Excellent repeatability and process control
  • Elimination of mechanical fasteners and adhesives


Applications

  • Thermal press applications include heat staking, inserting, embossing, date coding and degating.
  • Automotive industry for door panels, map pockets, light-pipe staking, consoles, arm rests and switch clusters. 
  • Medical applications include blood-processing equipment, chemical pumps, fittings, flow meters, IV drug delivery and surgical instruments.
  • Consumer Product applications include personal computers, portable telephones, laser printers, copy machines, video games, speakers and appliance components.
  • Industrial applications include conveyor systems, gears, pulleys, couplings, and motor housings. Thermal presses are also used in Toy Manufacturing and the Sporting Goods industry


The goal of a heat stake is to reform a plastic stud or protrusion over a mating component to lock it into place.


Hollow Stake

 hollow stake

  • Works well with Large diameter studs
  • Produces a large strong head
  • Does not have to melt a large amount of material (less time, less force)
  • Avoids sink marks on the opposite side of molded component
  • Enables parts to be re-assembled with self-tapping screws should repair or dis-assembly be necessary

hollow stake drawing


Rosette or Flared

  • Recommended for large diameter posts
  • Flares out material giving 360 degrees of even holding strength
  • Stakes / moves more volume easily
  • Slightly less staking forces required
  • Slightly less cycle time as opposed to a dome stake on large studs
  • Alignment to our staking heads is critical
  • Requires very accurate positioning so that center point of tip contacts center of stud
  • Not generally recommended for use on heated platens (best on probes) because of thermal expansion
  • Not generally recommended on small diameter studs
  • Aesthetically looks like a rivet

rosette stake


Knurled Stake

knurled stake

  • Alignment is not an important consideration from an application standpoint
  • Ideally suited for high volume production
  • Three styles available: fine knurl, medium knurl, coarse knurl
  • Generally the pitch/texture of the knurl is related to diameter of stud to be staked
  • Can knurl a large tool and hit many stakes without alignment worries
  • Good use on heated platens where thermal expansion is generally a problem
  • Also works well when mating component has a countersink
  • Greatly reduces cycle time

knurled stake drawing


Rosette Low

  • Recommended for large diameter posts
  • Flares out material giving 360 degrees of even holding strength
  • Stakes / moves more volume easily
  • Less staking forces required
  • Slightly less cycle time as opposed to a dome stake on large studs
  • Alignment is critical
  • Requires very accurate positioning so that center point of tip contacts center of stud
  • Not generally recommended for use on heated platens (best on probes) because of thermal expansion
  • Not generally recommended on small diameter studs

rosette low stake


Flush Stake

  • Used for applications requiring a flush surface
  • Requires that mating component has sufficient thickness for a countersink, counterbore, or a combination of the two
  • Volume of the boss is crucial to fill the countersink properly

flush stake


Dome/Conical High Profile

  • Produces a tight stake
  • Recommended for crystalline material with sharp melting points
  • Highly defined melting temperatures, (post cooling a must)
  • Good for glass filled materials, or materials with abrasive fillers 
  • Good for materials that degrade easily (post cooling)
  • Dome stakes come in two profiles: High and Low
  • Works well into counter bored holes

conical high profile