Why do some steel structures have to be milled?

Milling is indeed a common processing method for steel structures, which is often used for flange bearings (such as crane beams) and end splicing parts of box members. Its purpose is to ensure the complete contact of end faces when installing components and to ensure reliable force transmission.

There is a special end milling cutter in steel structure processing equipment, which actually makes the surface smooth by grinding, and the milled end face is very bright.

Extended data:

End face refers to the plane at both ends of cylindrical workpiece, which is often used to describe the specific plane of parts in machining, especially in gears, machine tools and other mechanical mechanisms.

Face grinding is mainly a grinding method consisting of a feed disc and two grinding wheels. The roller is installed in the working hole of the feed tray. When the feed tray rotates, the roller passes through the grinding area between the two grinding wheels. The grinding wheel rotates at high speed, and two parallel roller end faces and two grinding wheel end faces are simultaneously ground.

When the roller is conveyed to the grinding area by the feed tray, because the two grinding wheels rotate at high speed in the same direction, the roller bushing sticks to the inner surface of the working hole and the roller rotates.

However, the linear speed of the roller rotation is much lower than that of the cutting point of the grinding wheel. In addition, the feeding tray moves in an arc to form grinding wheels at both ends of the grinding roller, so that the roller can obtain ideal verticality, parallelism and end roughness.

The most common and basic machining in turning is lathe excircle, which is closely related to other machining forms on lathe. Therefore, it is necessary to master the technology of lathe excircle skillfully.

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