As the most important advanced manufacturing technology in mold manufacturing, high-speed machining is an advanced manufacturing technology integrating high efficiency, high quality and low consumption. Compared with traditional cutting, high-speed cutting has undergone an essential leap. The metal removal rate per unit power has increased by 30% to 40%, the cutting force has been reduced by 30%, and the cutting life of the tool has increased by 70%. The cutting heat of the workpiece is greatly reduced, and the low-order cutting vibration almost disappears.
(1) High production efficiency
Due to the high cutting speed and feed rate of high-speed cutting, the material removal rate per unit time during high-speed cutting has been greatly improved compared with conventional cutting. High-speed cutting is especially suitable for industries that require high material removal rates, such as aerospace, automotive industry and mold making.
(2) Small cutting force
It is especially suitable for processing parts with poor stiffness such as slender shafts, thin plates and thin-walled parts such as machine tool screws and wing panels on aircraft. At present, the wall thickness of thin-walled parts on aircraft is processed by high-speed cutting. 3~5μm.
(3) Small thermal deformation
High-speed cutting has a high feed rate and cutting speed, which can greatly shorten the cutting time of the workpiece. It is very suitable for processing parts that are slender, easily deformed by heat, and require high precision.
(4) High processing precision
During high-speed cutting, the workpiece is basically in a stable state of "no vibration", and the influence of cutting force and cutting heat is small, so it is easier to obtain parts with higher machining accuracy. Especially suitable for optical instruments and precision manufacturing industries and other fields.
(5) Difficult-to-machine materials can be processed
Because high-speed cutting has small cutting force and cutting deformation, the tool is not easy to wear and can be used to process some difficult-to-machine materials. For example, the aerospace industry uses a large number of materials such as aluminum alloys, magnesium alloys, nickel alloys, and titanium alloys. These materials generally have the characteristics of high strength, high hardness, high wear resistance, and impact resistance. Large deformation, poor processing quality, serious tool wear and low processing efficiency, while high-speed cutting can effectively reduce tool wear, prolong tool life, improve production efficiency, and obtain higher machined surface quality.