During the mechanical processing of titanium and titanium alloys, there is always an unexpected guest - burrs, either large or small, appearing on the products. These are the excess titanium chips that grow at the edges during the plastic deformation of titanium and titanium alloy materials. How to remove the excess burrs? This is the main topic we are discussing today.

Although titanium burrs are small, they are very harmful. Burrs in various forms such as flying edges, splashes, etc., not only affect the size of the product, but also may affect the assembly accuracy of the parts.

How to remove the burrs from titanium alloys has always been a difficult problem in the processing field. With the continuous development of technology and the replacement of processing equipment, the starting point of assembly has become lower and lower, ranging from eighth-grade fitters to ordinary workers on assembly lines. Of course, standardization has played an important role, but the improvement of processing equipment's processing accuracy and performance is also indispensable.

Burrs can be basically classified into three types according to the processing method, size, and treatment method.

1. Hard burrs. These are large and hard burrs formed after welding, laser cutting, etc. They are usually removed by directly contacting and removing the burrs with a file or grinding machine, but they are prone to leaving processing marks on the workpiece surface, which is suitable for preliminary processing with low surface quality requirements.

Grinding with a grinding wheel: Using a grinding wheel machine or angle grinder to grind the parts, which can effectively remove the burrs and make the surface smooth. However, improper operation may cause safety accidents.

Grinding with a file: Removing the burrs manually with a file. The method is simple. However, the operation requires high skills, and it is more suitable for cases with fewer burrs and simple product structures.

2. General burrs. These are burrs formed after processing with lathes, milling machines, wire cutting, etc. They are removed using sanding, grinding, and polishing. Using flexible abrasive materials to adhere to the workpiece surface, while removing the burrs, it can also improve the surface finish, and is often used for processing with certain surface quality requirements.

Grinding with a sanding belt: The sanding belt removes the burrs by friction with the workpiece surface under certain pressure. The coarseness of the sanding belt can be selected according to the requirements of the workpiece surface.

Grinding: Using grinding agents and grinding tools to grind the workpiece surface. While removing the burrs, it can also improve the surface finish.

3. Small burrs. Vibratory polishing, rolling grinding, etc., these methods do not directly "hit hard", but rely on physical or chemical principles. They remove the burrs while ensuring accuracy, and are good helpers for precision processing.

Electrochemical: Based on the principle of electrochemical corrosion, by controlling the current and electrolyte, the burrs undergo anode dissolution and are removed.

Rolling processing: Rolling the parts together with abrasive media, removing the burrs through friction and compression, suitable for batch processing of small parts.

Removing burrs is a basic requirement in metal processing. In actual production, only by using the appropriate burr removal method according to the part structure and accuracy requirements can the product meet the requirements.