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The importance of deburring

2024-03-08 管理员 Read 147

1: The impact of burrs on component functionality and overall performance


1. The impact on part wear is that the larger the burrs on the surface of the part, the greater the energy consumed to overcome resistance. The presence of burrs in parts may lead to fitting deviations, and the rougher the fitting area, the greater the pressure per unit area, making the surface more prone to wear.


2. The impact of corrosion resistance is that after surface treatment, the burrs on the parts are easily touched and peeled off, which can damage the surface of other accessories. At the same time, new unprotected surfaces will form on the burrs. Under humid conditions, these surfaces are more prone to rust and mold, thereby affecting the corrosion resistance of the entire machine.


2: The impact of burrs on subsequent processes and other processes


1. If the burrs on the reference surface are too large during one machining, it will lead to uneven machining allowance during precision machining.


Uneven margin: When cutting at the burr area due to excessive burrs, the spindle cutting amount will suddenly increase or decrease, affecting the smoothness of cutting, resulting in tool lines or machining stability.


2. If there are burrs on the precision reference surface, it is easy for the reference surface to overlap, resulting in inaccurate machining dimensions.


3. In surface treatment processes, such as spray molding, the coated metal will first accumulate at the burr area (static electricity is more easily adsorbed), leading to a lack of plastic powder in other areas and unstable quality.


4. Burrs are more likely to cause adhesion during heat treatment, often damaging interlayer insulation, leading to a decrease in the alternating magnetic properties of the alloy. Therefore, some special materials such as soft magnetic nickel alloys must remove burrs before heat treatment.


3: The importance of deburring


1. Reduce and avoid the influence of burrs on the positioning and clamping of mechanical parts, and reduce machining accuracy.


2. Reduce the scrap rate of workpieces and reduce the risk to operators.


3. Eliminate wear and failures of mechanical parts caused by uncertainty in burrs during use.


4. When painting mechanical parts without burrs, the adhesion will increase, making the coating texture uniform, appearance consistent, smooth and tidy, and the coating firm and durable.


5. Mechanical parts with burrs are prone to cracking during heat treatment, which reduces the fatigue strength of the parts. For parts that are under load or are running at high speed, burrs cannot be removed.