Precision machining is one of the most popular types of mechanical machining. Milling works account for 40% -60% of the machining process.
Due to the development of the industry, new machinery is characterized by the following features:
– Anti-wear and abrasion
– High hardness and durability
– Work in a chemical environment
– Very large in size
– Machining of aluminum sheet of wood press machine 3,000 x 1700 x 80 mm.
Advantages of machining on these devices:
– Hardness of machined materials is not required
– Accuracy to size and surface smoothness is high compared to machining through various stages of small size machines.
– Economic effectiveness is high, especially when processing products with troublesome, large size.
– Choose the embryo – the first stage. Buy round steel, or forged steel. Choose according to the designer’s suggestion.
In the rough machining process, we use lathes, milling to cut round steel or forged to make it convenient in the next tooth creation.
– Dental crowns – After processing the tooth shape. Teeth is basically used to adjust the size to the microphone unit, and to increase the authenticity. This step is necessary because it creates the microscopic dimension of the surface, which gives the exact size of the gear required.
Heat treatment – all gears must undergo this mechanical step. Heat treatment can help improve hardness; however, over treatment may make gears become brittle and prone to breakage. On the contrary, if heat treatment is not enough, the hardness will not be sufficient. It refers to the excess heat treatment methods such as: carbon infiltration, ram, nitrate infiltration… We select the treatment method Depending on the material and target use. Please give two typical examples: carbon and ramp, temperature and carbonation period of 900 ℃, processed within 8 hours. The ram is: 300 ℃ within 2 hours. This is a highly demanding job and a high technical level.
Scaling – the size of the profile and surface of the tooth is almost determined after this step. However, considering the rotation of the gear, there are many other important factors, such as to prevent shaft from rotating, we need to work fine diameter in and out. For such processing, use high speed grinding wheels. The implementation seems to be too simple, but it improves the transmission accuracy of the tilt gear a lot.
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