Precision mechanical machining is one of the most effective machining types when it is most commonly carried out in mechanical workshops, the machining of milling operations accounts for a large proportion of about 40% -60% of the process. machining of a mechanical processing workshop.
Due to the development of the labor industry, new types of machinery and equipment are characterized by the following features:
- Resistant and abrasion resistant
- High rigidity and high heat resistance
- Works in chemical environments
- The size and volume are large.
- Milling aluminum sheet of wood presses of size 3000 x 1700 x 80 mm
- Precise mechanical machining forms
The world's leading technology for precision engineering, we apply to many different types of products in different forms of machining:
CNC lathe machining
The product is rotated, machined by the corresponding cutting tool. Outside turning, inner turning, step turning, face cutting, thread machining ...
CNC milling machining
By using cutting tools such as drill bits, milling cutters, endmill ... for face milling, drilling, grooving, boring ... Milling machines with rotation of the spindle and provide movement to the workpiece.
Handling after processing
In the case of precision mechanical machining by lathe and CNC machining with a milling machine that has not yet achieved the accuracy and roughness required, then the product will be processed through the following stages: grinding machining, polishing, sand blasting ... to achieve high accuracy.
Advantages of mechanical processing
Machining CNC turning and CNC milling machining products with complex shape and high accuracy (0.01mm), especially specialized in the machining of screw shafts on 4-axis CNC milling machines or 3-axis CNC turning machines. The outstanding advantage of precision machining is the ability to process almost any type of material that requires only minimal mechanical force.
Does not require hardness of processed materials, there is a probability of processing high hardness materials
Achieve high dimensional accuracy and high surface smoothness compared to processing through many stages of small sized machines.
Economic efficiency reaches high, especially when processing products with a complex shape and size
Choose billet - the first stage to buy round steel, or forged steel. Choose according to the size designer's recommendation.
In the rough machining process, we use lathes, milling machines to cut round steel or forged steel, of course machining is convenient in the next steps to create teeth.
Dental floss - Finishing treatment after tooth shaping. Floss is basically used to resize the microphone unit, and increase the accuracy. This stage becomes very necessary because it creates the microscopic size of the surface, giving the size of the absolute size of the required gear.
Heat treatment - all gears have to go through this mechanical process. Heat treatment helps to increase hardness but, if processed overheating, the gear will be brittle and become easily broken, on the other hand, if the heat treatment is insufficient, there will not be enough hardness. Talking about excessive heat treatment methods such as: carbon permeability, ram, nitriding, high frequency, ... Depending on the material and the purpose of use, choose the treatment method. Please give two typical examples: carbon permeability and ram, temperature and carbon permeability is 900 ℃, processed within 8 hours. And ram is: 300 ℃ incubation within 2 hours. This is a job that requires a lot of experience and high technical level.
Scraping - the size of the contour and the tooth surface are almost decided after this step. However, considering the rotation of the gear, there are many other important factors, such as to prevent axial deviation when rotating, mechanical processing of internal and external diameter is required. For such finishing, use a rotating abrasive with high speed. The step may seem too simple, but it greatly improves the transmission accuracy of the inclined gear.