There are many reasons for the deformation of galvanized coil parts, which are related to the material, shape and production conditions. Due to the large thermal expansion coefficient of galvanized coil parts, it is easy to deform in the process of thin-wall
machining. In the actual operation, the operation method is also very important. Then, what is the operation skill of reducing the processing deformation of the galvanized coil? Here, the technician of the galvanized coil manufacturer answers for
When processing the parts of the galvanized tape cavity, try not to let the milling cutter directly plunge into the parts like a drill bit when processing the cavity, resulting in the insufficient chip space of the milling cutter and the unsmooth chip
discharge, resulting in the overheating and expansion of the parts, as well as the disadvantageous phenomena such as cutter breakage. First, use a drill with the same size or a larger size as the milling cutter to drill the hole, and then use the milling
cutter to mill.
How to reduce the deformation of galvanized coil?
The sequence of galvanizing coiler should also be paid attention to. The emphasis of rough machining is to improve the processing efficiency and pursue the removal rate within
unit time. Generally, reverse milling can be used. In other words, the superfluous material on the surface of the blank is cut off with the fastest speed and the shortest time to basically form the required geometric profile for finishing. The emphasis
of finish machining is high precision and high quality, so it is better to use down milling. Because the cutting thickness of the cutter teeth gradually decreases from the maximum to zero, the work hardening degree is greatly reduced, and the deformation
degree of the parts is reduced at the same time.
If there are more than one cavity on the galvanized coil parts, it is not suitable to adopt the sequential processing method of one cavity and one cavity in the processing, which is easy to cause
the parts to be deformed due to the uneven stress. The multi-layer machining is adopted, each layer is processed to all cavities at the same time as much as possible, and then the next layer is processed, so that the parts are evenly stressed and the
deformation is reduced.