And induction hardening, flame hardening, carburizing and quenching
processes, laser hardening hardened layer, high hardness (typically higher than
the induction hardening 1-3HRC), workpiece deformation is small, the heating
depth and easy to control the heating path, easy to automate , did not like the
induction hardening of parts of different sizes according to design appropriate
induction coil. Gifts of laser pointer are good choices.
The processing of
large parts need not be case hardening heat treatment furnace size and other
chemical constraints, in many industries to gradually replace the CKS and the
chemical induction hardening heat treatment and other traditional crafts. Of
particular importance is the deformation of the workpiece before and after laser
hardening is almost negligible, it is particularly suitable for high-precision
surface treatment of parts required. The depth of the laser hardened layer in
accordance with part composition, size and shape of the laser process parameters
and different, usually in the range 0.3 ~ 2.0mm. For large gear tooth surface,
large parts of the journal shaft quenching, the surface roughness is essentially
the same, no subsequent machining to meet the needs of the actual working
conditions. More gifts of laser pointer will be recommended to the customer.
Laser melting quenching technique is the use of a laser beam to the
substrate surface is heated to above the melting temperature, the thermal
conductivity of the substrate within the surface layer quickly cooled leaving
the melting and solidification cooling crystallization process. Quenching
obtained by melting a very dense, along the depth direction of the organization
were melting - solidification layer, phase transformation hardening layer, heat
affected zone and substrate. Laser melting layer than the depth of laser
hardening hardening layer deeper, higher hardness, wear resistance and better.
Inadequacies of the technology lies in the surface roughness of a certain degree
of damage, generally require subsequent machining to recover. In order to reduce
the laser melting treatment part surface roughness and reduce the amount of
follow-up process, Huazhong University of Science and Technology prepared a
special laser melting hardening coatings, can significantly reduce the melting
layer of the surface roughness. The company has more options of laser pointer
for the customer.
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