SHEET METAL POLYSOUDE
Figure 9: The welding parameter screen allows the input / correction of the parameters on a pre-established base
had been considered to be very useful, so an additional subroutine was implemented to the program which calculated a particular trajectory from reference points, which had to be set at the edges of the remaining surfaces. The careful planning and comprehensive preparation of
the project as well as the narrow collaboration between equipment manufacturer and customer had ensured the success of the project: the cladding operations on the two workpieces could be finished some time before the scheduled date. An unexpected gain of productivity had been achieved
Figure 10: Control cabinet of the column and boom installation
due to the extremely low specific energy input of the TIGer cladding process of only 0.54kJ/mm. Despite the low heat input the test coupons had shown a maximum hardness HV 10 of only 250, i.e. no dangerous hardening of the depot or HAZ had to be feared. However, the temperature of the valve body rose only moderately during the cladding, so no interruptions had become necessary to cool down the workpiece.
Subsequent use of the equipment Actually, the column and boom equipment is used for a different cladding application: the inside of 22 cylinders, which will become the sleeves for the ends of flexible hose connectors, has to be coated. The process time in case of cladding with the conventional
TIG equipment would have been 79h per component, with the TIGer technology at a deposition rate of 3.3kg/h this time is decreased to only 19h.
Conclusion Together with the recently developed TIGer technology, state- of-the-art equipment allows to carry out weld overlay operations on virtually any workpiece geometry. A considerable reduction of process time can be achieved without any loss of coating quality. The versatility of the TIGer technology and the easy- to-use graphical user interface allows using the installations in a very flexible manner, an interesting advantage especially for subcontracting companies.
Figure 11: Remote control pendant “nPad”
Figure 12: Cladding of the inside of steel cylinders for flexible hose connectors
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