mercredi 6 mai 2009
mercredi 17 décembre 2008
The CLAD system
An other achievement of the CLAD process.
Owing to the POWERCLAD software, a large range of items can be easily processed from CAD file (here from IGES file). The fully equipped CLAD system (200 W fiber laser, high performance cladding nozzle, powder feeding device,CNC workstation ...) allows the manufacturing of this part without tools.
A stainless steel duct
For massive parts manufacturing, repairing/modification of large objects, a macro-nozzle and a very high power laser system can be used.
Cladding of valve seats
Owing to the POWERCLAD software, a large range of items can be easily processed from CAD file (here from IGES file). The fully equipped CLAD system (200 W fiber laser, high performance cladding nozzle, powder feeding device,CNC workstation ...) allows the manufacturing of this part without tools.
A stainless steel duct
For massive parts manufacturing, repairing/modification of large objects, a macro-nozzle and a very high power laser system can be used.
Cladding of valve seats
mercredi 5 novembre 2008
The POWERCLAD software
In order to produce mechanical parts, the CLAD process is associated with the POWERCLAD software for manufacturing parts directly from digital datas.
Thus it is very easy to obtain the tool path generation from CAD file.
In the video below, an example can be seen.
Thus it is very easy to obtain the tool path generation from CAD file.
In the video below, an example can be seen.
samedi 20 septembre 2008
A butterfly
This is a video about the manufacturing of a butterfly sample shape on a 5 axis cnc workstation
jeudi 11 septembre 2008
Rapid manufacturing samples
With the CLAD process, we can find many manufacturing methods :
* Manufacturing of the whole part
Picture : L shaped part (Cp-Ti)
Picture : A small blade
* Manufacturing by adding shapes on machined parts
On the picture above, we can see tubes which were deposited on a flange in order to reduce the processing cost and material losses.
* Manufacturing of the whole part
Picture : L shaped part (Cp-Ti)
Picture : A small blade
* Manufacturing by adding shapes on machined parts
On the picture above, we can see tubes which were deposited on a flange in order to reduce the processing cost and material losses.
samedi 16 août 2008
Thin Shell parts manufacturing
The CLAD process allows the processing of thin shell parts with low power fiber laser device (<200w). A special nozzle development allows to obtain a very small powder stream diameter (from 500 to 1000 µm) in order to optimize the powder catchment efficiency (PCE)(up to 60%).
Owing to this PCE, the surface roughness and the processing time are improved.
Picture : View of the nozzle output, powder stream without laser
The mesoCLAD system composed of the nozzle, a single mode fiber laser and a special accurate powder feeder (from 100 to 2000 mg/min) contributes to the manufacturing of thin shell or small parts.
Picture : Processing of a thin wall
Picture : AISI 316 L part
Picture : Thin Ti6Al4V walls (width 650 µm) Laser power : 100 W !!! Layer thickness : 140 µm
Owing to this PCE, the surface roughness and the processing time are improved.
Picture : View of the nozzle output, powder stream without laser
The mesoCLAD system composed of the nozzle, a single mode fiber laser and a special accurate powder feeder (from 100 to 2000 mg/min) contributes to the manufacturing of thin shell or small parts.
Picture : Processing of a thin wall
Picture : AISI 316 L part
Picture : Thin Ti6Al4V walls (width 650 µm) Laser power : 100 W !!! Layer thickness : 140 µm
mercredi 6 août 2008
About the laser cladding nozzle
One of the most important element of the process is the cladding nozzle. The cladding nozzle of the CLAD process is a high performance nozzle patented by IREPA LASER. The nozzle is used worldwide in industry and technical centers. The powder travels precisely in fluidized bed through the laser beam axis in order to optimize the laser/powder interaction.
With this coaxial configuration, the laser beam energy is used to melt the particles and the thin layer of the substrate. Thus, a fully dense deposit and a clad/substrate metallurgical bonding are obtained.
Furthermore, with the coaxial configuration, the cladding process can be carried out in omnidirectionnal way.
The laser cladding nozzle can be adapted and optimized for a lot of laser system (Nd:YAG, CO2, fiber laser and diodes laser) and a powder catchment efficiency* up to 90% can be achieved.
* ratio between the mass of the deposit and the mass of injected powder.
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