What Is a Key Seat Milling Machinery?
Generally, digging a groove in a circular hole is called key seat milling machinery. The machine used for this cutting process is called key seat milling machinery.
Key seat milling machinery is used for products with large outside diameters, long cutting lengths, and wide keyway grooves. Compared to slotter machining, the key seater provides a cutting process suitable for larger products.
A keyway width of about 50 mm can be cut in a single pass. The high-precision key seat milling machinery cutter moves up and down for cutting. Therefore, multiple products can be stacked and processed simultaneously within the stroke range.
Uses of Key Seat Milling Machinery
Key seaters are used to make keyways and splines. The shaft and gear are integrated by digging a groove inside, preventing them from spinning when transmitting rotational motion. Shafts and spindles are divided into two types: those with grooves for inserting keys and those without grooves. The type with grooves is used for power transmission, while the type without grooves is used for light loads. In addition, most keys for power transmission are “parallel keys” where the key height does not change. When power torque transmission is important, “sloped keys” with shallower key heights are applied.
Key seat milling machinery is characterized by cutting that takes advantage of its long machining width. Workpieces with large outside diameters can be machined. Cut can be done in a single operation, depending on the cutting size.
Principles of Key Seat Milling Machinery
The basic principle of key seat milling machinery goes back to slotter machining. Slotting is a processing method mainly used for keyway processing. Cutting is performed by moving the blade up and down along the shape of the keyway to be made.
The depth direction is adjusted manually. During the process, the tool is moved slowly to dig the groove. The movement is done by hand, so it is done gradually by sight, sound, and feeling. In this image, the cutting process is similar to a carpenter’s hammers, which are repeated many times and take time to complete.
On the other hand, slotter processing is characterized by a high degree of freedom in the size and length of the keyway to be machined for each shape one by one. Any value can be entered for the settings. Specifically, input the inside diameter, key width, key depth, depth of cut, number of zero cuts, and crown amount. All that remains is to set the jig by hand and start.