Five reasons why sheet metal parts need edge rounding

For modern sheet metal processing companies, the treatment of burrs and sharp edges of sheet metal is an essential process for reliable production.

Deburring machines reliably remove burrs remaining on parts, which can ensure smooth subsequent processing in the sheet metal processing process chain. This issue will show you why deburring is important in sheet metal processing.

Different sheet metal cutting processes will form different types of burrs, and the most common flame cutting method is a very representative one. After flame cutting, slag and residue will be attached to the cut parts. The residue on the edge of the sheet metal can be relatively easily removed with hand tools, while the molten material firmly attached to the surface and edges will make the sheet metal lose its smoothness and must be completely removed with a suitable deburring machine. In addition to the attached residue and burrs, almost all other cutting methods will leave sharp corners, such as laser cutting processes. Therefore, rounding the corners of sheet metal parts is indispensable.

What is deburring?

In most cases, the concept of deburring is not limited to pure burr removal. The deburring process is usually completed after the rounding of the sheet metal parts. Since the grinding tool also grinds the surface and cross-section of the workpiece (the degree of grinding varies depending on the process), the machining deburring process usually also covers this function.

The deburring process of sheet metal parts is mainly based on the grinding process. Today’s companies rely on automatic deburring processes. Advanced deburring machines, which are equipped with various grinding tools and brushes, can process sheet metal parts in batches according to specific edge processing requirements. This is the ideal rounding principle of advanced deburring machines.

Suitable for any type of laser cut and stamped parts:

1. Avoid injuries after rounding the corners of sheet metal parts

Sharp corners of sheet metal cut parts are a major risk of causing work-related injuries. Sharp corners may cut workers engaged in operation, assembly or subsequent processing. If individual parts are not deburred, the finished product will also be at risk. When stacking sheet metal parts, they will also damage each other’s surfaces and scratch adjacent parts. Deburring and rounding the corners of sheet metal can avoid such injuries.

2. Sheet metal parts look better after deburring

Deburring machines can not only avoid injuries caused by sharp corners of sheet metal parts, but also complete the grinding of sheet metal parts at the same time, processing a smooth and beautiful exquisite surface, allowing you as a sheet metal processor to stand out from the competition.

3. Better coating adhesion after rounding the edges of sheet metal

The quality of spraying and adhesion of various coatings depends on whether the edges of the sheet metal have been rounded inside and outside beforehand. Therefore, rounding the edges of sheet metal has become an integral part of the deburring process. Whether it is powder, galvanizing, wet painting or KTL primer – the coating cannot adhere firmly to sharp edges and the coating peels off, so rounding the edges of sheet metal is very necessary. Not only can the coating on the edges of sheet metal be evenly applied, but it also has rust resistance. Manufacturers of construction machinery or agricultural machinery need correct rounding processing even more. They can round the edges of sheet metal parts with a deburring machine to make the finished parts have reliable rust resistance.

4. Safe subsequent processing without oxide layer

After laser cutting with oxygen as auxiliary gas, an oxide layer will appear on the cross section of the edge of the sheet metal, which will negatively affect the subsequent processing of the sheet metal. The sprayed paint layer will also peel off with the oxide layer, and rust will grow later. In addition, the oxide layer between the sheet metal parts may even make it impossible to achieve uniform welding results. Strictly speaking, removing the oxide layer is an independent process, but it can also be removed to a certain extent by using special deburring tools or spraying processes.

5. Deburred sheet metal parts protect tools from wear

Many sheet metal processing companies have realized that deburring can improve the quality of sheet metal parts, facilitate subsequent processing, and thus save time and reduce costs. Deburred smooth workpieces are easier to assemble, paint or weld. They protect processing tools from wear. The burrs on sheet metal parts are particularly prone to damage hemming dies and leveling rollers or cause them to wear quickly. Deburred sheet metal parts can protect processing tools in subsequent processing and save production costs.

Conclusion:

Edge rounding is an important part of the process chain of sheet metal processing companies. After deburring and edge rounding, the workpiece has a beautiful surface, which can ensure smooth progress of the production chain. Therefore, edge rounding will bring you a decisive competitive advantage.