In the realm of mechanical manufacturing, the emergence of burrs is an inevitable consequence during the transformation of materials into components through various processing methods. Regardless of the chosen manufacturing technique, burrs come in different sizes, but eliminating them entirely is an insurmountable challenge. Therefore, further post-processing is required to remove these burrs. However, it's crucial to understand that the deburring process itself generates new burrs due to its inherent nature, leading to a repetitive cycle. Hence, the discussion on deburring techniques in this article is limited to a certain extent, focusing on the removal of surface burrs from planar parts.
Processing Methods for Planar Parts:
The majority of planar parts are formed through cutting and stamping processes, which can be further categorized into oxygen cutting, plasma cutting, laser cutting, ultra-high-pressure water jet cutting, electrolytic cutting, and tool cutting. Stamped parts are commonly classified as general punching, numerical punching, precision punching, and hydraulic processing. Among the various cutting processes, oxygen and plasma cutting exhibit the poorest quality, resulting in a significant presence of slag and flash on the part surface and severe oxidation on the cut section. For such parts, the primary requirement is to remove the slag and flash, which can be accomplished using a dry belt grinding machine. This process involves grinding the entire surface of the workpiece to eliminate slag and flash. However, this method cannot effectively remove the oxidation layer from the cut section, and the edges of the workpiece are often severely collapsed. For high-demand users, apart from removing slag and flash, there is a need to ensure the complete removal of the oxidation layer on the cross-sectional area and achieve uniform edge chamfering. Ordinary belt grinding is no longer sufficient to meet these stringent requirements.
Advanced Deburring Technology:
The most advanced deburring technology in use today is the double-sided automatic belt deburring machine, equipped with a range of belt specifications to cater to different needs:
1. Strong steel ball belts for removing slag and flash.
2. Sanding belts for regrinding and edge refinement.
3. Filament belts for precision grinding.
4. Steel wire belts for rust removal and cleaning.
Employing a combination of scraping, filing, and grinding principles, the elastic nature of these belts allows for targeted edge processing with minimal force applied to the flat surface. This results in effective deburring without damaging the surface, making it highly suitable for processing galvanized and film-coated plates. Moreover, due to the elastic processing principle, the belts can penetrate deep into the workpiece's cross-section, effectively removing the oxidation layer. Although laser and water jet-cut parts often have high precision and minimal burrs, for users with stringent requirements, the deburring process remains an essential step. The double-sided automatic deburring machine offers superior processing quality, high efficiency, and cost-effectiveness, outperforming the capabilities of 20 skilled deburring workers. This machine is suitable for a wide range of thicknesses, from 1mm to thicker materials, and different materials only require the appropriate belt replacement. This deburring process is equally effective for general punching and numerical punching parts, provided that the workpiece meets the machine's specifications.
Contoured Precision Stamped Parts:
For many precision stamped parts with contoured surfaces, ordinary belt deburring machines and double-sided automatic deburring machines are not suitable due to their smaller dimensions, which fall outside the processing range of these machines. In such cases, a planetary end-face grinding deburring machine is employed. This machine typically uses a dedicated conveyor belt, in conjunction with a magnetic conveying bed. Depending on the size of the burrs on the workpiece, it is configured with one sanding head and two to three planetary end-face grinding heads, allowing it to effectively remove burrs from various precision stamped parts while maintaining their original dimensional accuracy. Different materials may require the use of different grinding discs and belts.
The process of removing surface burrs from planar parts is a critical aspect of mechanical manufacturing. Various deburring techniques and advanced machines cater to different types of work-pieces, each with its unique advantages and capabilities. By selecting the appropriate deburring technology and making necessary adjustments, manufacturers can effectively remove burrs, oxidation layers, and other imperfections, enhancing the overall quality and appearance of their products. Embracing advanced deburring techniques and equipment ensures efficient and precise manufacturing processes, ultimately leading to enhanced customer satisfaction and competitiveness in the industry.
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