Deburring type and hazards

The deburring machine manufacturer will take you to understand the types and hazards of deburring.

The machining methods of mechanical parts can be roughly divided into material removal machining, deformation machining, additional machining, etc. In various machining processes, the excess parts derived from the machined parts that do not conform to the required shape and size are called burrs. The generation of burrs varies with different processing methods. According to different processing methods, burrs can be roughly divided into:

Casting burrs: Excess material generated at the joints of the mold or at the root of the sprue, with the size of the burrs generally expressed in millimeters.

Forging burrs: produced at the joints of metal molds due to plastic deformation of forging materials. Welding and gas welding burrs: Welding burrs are burrs on the surface of the part where the filler material protrudes from the weld seam; Gas welding burrs are slag that overflows from the cut during gas cutting.

Stamping burrs: During stamping, burrs are generated due to gaps between the punch on the die and the lower die, gaps between the cutting tools at the cutting edge, and mold wear. The shape of stamping burrs varies depending on the material of the plate, the thickness of the plate, the gap between the upper and lower molds, and the shape of the stamped parts.

Cutting burrs: Machining methods such as turning, milling, planing, grinding, drilling, and reaming can also produce burrs. The burrs generated by various processing methods have different shapes depending on the tool and process parameters. Plastic molding burrs: similar to casting burrs, burrs generated at the joints of plastic molds.

The presence of burrs will cause the entire mechanical system to malfunction, resulting in reduced reliability and stability. When machines with burrs undergo mechanical motion or vibration, the detached burrs can cause premature wear on the sliding surface of the machine, increase noise, and even cause the mechanism to jam and malfunction; Some electrical systems may experience circuit short circuits or damage to magnetic fields due to burr shedding while moving with the host, affecting the normal operation of the system; For hydraulic system components, if burrs fall off, they will exist in the small working gaps of each hydraulic component, causing the slide valve to get stuck, blocking the circuit or filter screen and causing accidents. It will also cause fluid turbulence or laminar flow, reducing the system's performance. Japanese hydraulic experts believe that 70% of the factors affecting the performance and lifespan of hydraulic components are caused by burrs; For transformers, the iron loss of iron cores with burrs increases by 20-90% compared to iron cores with burrs removed, and increases with frequency. The presence of burrs also affects the assembly quality of mechanical systems, as well as the processing quality and accuracy of inspection results in subsequent machining processes of parts.