Several advanced deburring techniques introduction
Glitches - Those who have struggled in the metal industry must be familiar with it. In the processing of metal products, it is ubiquitous. No matter what advanced sophisticated equipment you use, it will be born along with the products. The so-called burrs are mainly the plastic deformation of the material and a kind of excess iron scrap generated at the processing edge of the processed material, especially materials with good ductility or toughness, are particularly prone to burrs, and the burr problem is also a metal processing industry. One of the problems that engineers can't solve so far.
The burr types in the metal processing process mainly include flash burrs, sharp burrs, splashes, and other prominent metal residual parts that do not meet the product design requirements. For this problem, there is no effective method so far that can be eliminated during the production process. Therefore, in order to ensure the design requirements of the products, the engineers only work hard to eliminate the later channels, and so far have been different for different products. There have been many methods and equipment for deburring.
The 10 most common deburring methods:
1, artificial deburring
This is also a common method used by ordinary companies, using trowels, sandpaper, grinding heads, etc. as an aid. The trowel has an artificial trowel and a pneumatic shift.
Comment:
Labor costs are expensive, inefficient, and difficult to remove for complex cross-holes.
The technical requirements for workers are not very high, and products with small burrs and simple product structures are suitable.
2, die deburring
Deburring using a punch and a punch.
Comment:
A certain amount of die (matrix + fine die) production costs are required, and a plastic die may also be required.
For products with a simple parting surface, the efficiency and deburring effect is better than manual.
3, grinding deburring
Such deburring includes vibration, sandblasting, and rollers. Currently, companies use more.
Comment:
There is a problem that the removal is not very clean, and it may be necessary to manually treat residual burrs or to deburr other ways.
Suitable for large batches of small products.
4, frozen deburring
Use temperature drop to make the burr quickly embrittled, then spray the projectile to remove the burr.
Comment:
The price of equipment is about 2-3 million;
Suitable for products with small burr thickness and small products.
It is also called heat deburring and deburring. By introducing some flammable gas into an equipment furnace and then using some media and conditions, the gas can be instantaneously exploded, and the explosive energy can be used to dissolve and remove the burrs.
Comment:
The equipment is expensive (in millions of dollars), the operation technology is high, the efficiency is low, and side effects (rust, deformation);
It is mainly used in some high-precision parts and components, such as automotive aerospace and other precision components.
6, engraving machine deburring
Comment:
The equipment price is not very expensive (tens of thousands), and it is applicable to the simple spatial structure. The required deburring location is simple and regular.
7, chemical deburring
With the principle of electrochemical reaction, deburring operations are automatically and selectively performed on parts made of metal materials.
Comment:
It is suitable for internal burrs that are difficult to remove. It is suitable for fine burrs (thickness less than 7 filaments) of the pump body and valve body.
8, electrolytic deburring
An electrolysis process that uses electrolysis to remove burrs from metal parts.
9, high-pressure water jet deburring
With water as the medium, it uses its instant impact force to remove the burrs and flashes generated after processing, and can achieve the purpose of cleaning.
Comment:
The equipment is expensive and is mainly used in the heart of the car and the hydraulic control system of the construction machinery.
10, ultrasonic deburring
Ultrasonic waves generate high-voltage transients to remove burrs.