Many years of research have led GUHDO to come out with a new line of straight router bits – the G-Max. The objective was to give a solution for abrasive materials that dull the tools. Special carbide was developed for this
purpose along with geometric changes in the tools. These were produced in modern CNC machines and in a grinding of superior quality in automatic machines that transform the G-Max into the very best straight tool.
The new G-Max router bit is compared to a leading competitor at a magnifi cation of x 90 – it is possible to see the difference in the manufactured quality. Under laboratory conditions the two router bits were tested cutting an abrasive double sided melamine in a thickness of 17 mm. After both tools had cut a distance of 70 meters, the wear of the router bits were compared against each other at a magnifi cation of x 20. The new G-Max router had only worn by 0.07mm, whereas the nearest competitor´s router bit had worn by 0.15mm. Both tests provide clear evidence of the superior cutting ability of our new G-Max router bits.
A distinction is drawn between same direction and counter direction. Counter direction is meant if the feed direction runs against the direction of rotation of the tool. Same direction is given, if the feed direction and the direction of rotation of the tool, runs in one direction.
Comparison counter direction chipping (GGL) – same direction chipping (GLL)
The advantages of same direction chipping have led to a predominat use of this chipping type, particularly in the massiv wood conditioning:
- longer tool life
- minor energy demand because of predivision
The disadvantages of counter direction
- danger of larger crumbling
- coating problems / coating split
- higher feed rate forces required
The advantages of same direction chipping
- no predivision at massiv wood
- clean cutting surface
- clean cutting edges und minor outburst at coated plates
- less feed rate forces required
The disadvantages of same direction
- less tool life viz tools are blunting more
- bigger cutting force, because of no predevision