There are many types of metal machining and different sizes. There are more kinds of machine tools now. Some machine tools are small enough to be installed on the table, and some machine tools are large enough to be accommodated by a special factory building. Some machine tools are reasonably simple, while some machine tools have a very messy structure and operation.

Whether the machine tool is large or small, whether simple or messy, it can be divided into five categories, which are the five basic methods of metal machining and forming.

Drilling is the process of drilling holes in solid metal. A rotary drill bit called a twist drill is used. The machine tool used for drilling is called a drill press. Drilling machines are also available in many types and sizes. In addition to drilling, the drilling machine can also perform other processing. When drilling, the workpiece is positioned and clamped and fixed. As the bit rotates, it is drilled into the workpiece.

one Turning and boring

General machine tools are common machine tools used for turning workpieces. Turning is the process of cutting metal from a workpiece. While the workpiece is rotating, the tool cuts into the workpiece or turns along the workpiece

Boring is a processing method to extend or further process the holes that have been drilled or cast on the metal workpiece. Boring on a lathe is done by rotating one side of a single-edge tool to feed the workpiece).

3. milling

Milling is the process of removing metal using a rotating tool that has multiple cutting edges, called a milling cutter.

4. grinding

Grinding is the use of a grinding wheel called a grinding wheel to remove metal processing method. Grinding is a fine machining of the workpiece, and the workpiece size after processing is accurate and the surface is smooth. When grinding a round workpiece, one side of the workpiece is rotated and the other side is fed to the rotating wheel. When grinding a flat workpiece, the workpiece moves in reciprocation under the rotating wheel. The grinding process is often used to finish tough workpieces that have been heat-treated to a precise scale.

5. Shaper planing, planer planing and slotting

These processes use a single-edge tool to produce a fine surface. We should understand the difference between shaper planer, planer and slotting machine. When machining with a shaper, the workpiece is fed to the tool, and the tool moves reciprocally on the workpiece

When machining with a planer, the tool cuts into the workpiece or feeds to the workpiece, and the workpiece moves reciprocately under the tool.

Cutting is similar to shaping.

The slotting bed is actually vertical

Shaper, only the tool is up and down motion. When machining, the workpiece such as the direction of the tool for the feed movement, according to the type of workpiece to be machined, sometimes in a straight line shape, sometimes in an arc. The slotting machine is a vertical shaper, mainly used for cutting certain types of gears.

The broaching machine can be classified into the category of planer. Broach has multiple teeth. The broaching machine can be used for internal machining, such as machining square holes, but also for external machining, machining flat surfaces or a specific shape.