Sawing of plastics,
Milling and drilling

Magentify Plastics Processing

Sawing

Overview of LEUCO saw blades for plastics

 

  • To enlarge, please click on the picture.

 

Details of the saw blades

 

With four circular saw blades, carpenters overcome challenges that arise from the growing use of plastics in furniture and kitchens. After all, plastics have quite different characteristics. For instance, thermoplastics such as polycarbonate and polystyrene easily become too warm and melt when sawed, while thermosets tend to chip.

For use on table saws, vertical panel sizing saws and clipping and miter saws (machine type see description in the online catalog), Leuco recommends:

 

  • LEUCO g5 System (Article no. 192794)
    The sizing saw blade “G5” provides the highest quality when sawing thin polycarbonate panels, twin-wall sheets, for instance. Lightweight and brittle panels of extruded polystyrene can also be processed very well with this saw blade. They are commonly found as the Danopren and Efyos brands.
  • Solid Surface (Article no. 193133)
    “Solid Surface”is a saw blade designed for hard and abrasive thermosets. Thus, high-pressure laminates (HPL) can be sawed quickly and with high quality with this blade. It is ideally suited for the mineral-based panels known as Solid Surface, after which LEUCO also named this saw blade. Such panels are available under brand names such as Avonite, Corian, Hi-Macs and Varicor.

  • Anti-fingerprint (Article no. 193195)
    This saw blade offers an excellent cutting quality in “anti fingerprint” materials and for conventional plastics. The convex tooth sides prevent the formation of grooves on the cutting surface and flares on the surface of sensible materials.

Milling

LEUCO VHW shank-type cutters for the
machining of plastics with smooth surfaces

 
LEUCO VHW shank-type cutters can be used in many ways. They are characterized by high machining quality and a long service life and can be used for high-performance machining:
 

 

LEUCO notes regarding the milling of plexiglass on CNC machines

  • Material info
    Plexiglass “XT” is more heat-sensitive than plexiglass “GS”. Avoid a too low feed rate and/or too high speed.
  • Milling depth
    max. 2 x ØD for one advance. Milling using several advances avoids heating up of chips and cutter.

  • against feed (GGL) and with feed (GLL)
    GGL: recommended with higher feed rates. Chatter marks with too low chip removal.
    GLL: for lower feed rates. Irregular milling pattern with too high chip removal, incorrect clamping and/or spindle play; also risk of breakage.
  • Milling strategies
    Pre-milling/roughing: Standard VHW shank-type cutter or plastics VHW shank-type cutter, polished Z=1
    Finish-trimming/finishing: VHW shank-type cutter for plastics processing Z=1 (with polished chip chamber) VHW polishing shank-type cutter, polished Z=5.
  • Console table
    Use as many suction devices as possible. Keep workpiece overhang with regard to suction device as small as possible. Cleaning the suction device surfaces with plastic cleaner might improve the result.
  • Nesting table
    Alternative: milling in two steps: cutting depth for roughing approx. 1/10 to 2/10 smaller than panel width. Cutting depth for finishing approx. 1/10 to 2/10 deeper than panel width.

Machining information

  • Details regarding the milling process, such as revolutions per minute, feed rate and removal and information on the tools can be found in our flyer on the machining of plastics.

Drilling

LEUCO VHW drill bits for plastics

 
The LEUCO solid tungsten carbide (VHW) dowel bit is characterized by a very smooth cut. When drilling PMMA (e.g. plexiglass), the drill bit works with a very low cutting force – depending on the application approx. 1/5 of a standard drill bit.
 
The VHW body is able to optimally compensate vibrations. The chip evacuation is optimal, multiple hogging is prevented to a large extent which results in a low or only a minimal heating of the heat-sensitive PMMA material and the drill bit.
 
 

Machining information

  • Details regarding the drilling process, such as revolutions per minute, feed rate and removal and information on the tools can be found in our flyer on the machining of plastics.