G.Weike Laser
Profession Laser Manufacturer more than 15 Years.
41
5. Put a piece of gummed paper on the nozzle again, use low power laser to
penetrate again and check the hole round and center position for 2-5 times until
the laser beam is centering in the nozzle opening. Then change a small opening
nozzle and do the ways again till laser beam is in the center of nozzle opening.
The laser beam after adjusting must locate in the center of nozzle (will use now)
opening.
Caution: Do not stop laser to avoid any damage.
5.6 Nozzle function and central adjustment
5.6.1Nozzle function and adjustment
5.6.1.1Nozzle function
The design of nozzle and jet flow, directly affect the cutting quality. The
manufacturing precision of the nozzle, is closely related to the cutting quality.
Nozzle's main functions are:
1)To prevent cutting fused stains damaged focus lens and rebound upwards into
the cutting head of debris.
2)Nozzle can change the cutting gas, control the size area of the gas diffusion
and, thus affect the cutting quality. Picture 5-19 is the install nozzle and not
install nozzle, gas jet.
Without nozzle
with nozzle
Picture 5-19
5.6.1.2 Laser and nozzle adjustment
Adjust nozzle make laser through from nozzle center, details ways as below:
a)Put nozzle move to cutting height
b)Scrible on the surface of nozzle, then put white no-dry adhesive tape on the
surface.
Adjust laser input power 20w--150w. After laser out of light stop, put no-dry
adhesive tape off, attention not move its relevant position. If distance between
nozzle position and laser center has a big different, no-dry adhesive tape will not
open center hole; due to laser central is fixed, then needs adjust bolt on the
adjustment mirror cell handle to change the focus central, make it co-inside with
laser central. Above action again, until laser on the white no-dry adhesive tape
open the hole with nozzle central co-inside, then confirm co-inside laser central
with nozzle center.
5.6.1.3 Nozzle's influence on the cutting quality and the selection of nozzle
aperture nozzle
a) Connection of nozzle and cutting quality
Nozzle center is not concentric with the center of the laser, the effects of
