Category Archives: Deburring Process

What is the Deburring Process?

deburring process

At the Cleveland Deburring Machine Company (CDMC), we’re regularly speaking to members of the manufacturing industry about their processes, their product outcomes, and their needs. Many of them are refining their processes to reach greater quality standards, some are trying to improve their processes to re-attain a quality level they’ve enjoyed in the past. But, for almost all of these clients, we’re hearing about a need for deburring along the manufacturing line. Fortunately, here at CDMC, that’s exactly what we do.

The deburring process, for those who aren’t familiar, is a process that removes built-up burrs and other imperfections from a finished surface. A burr is a ridge or area of roughness produced during the cutting of metal parts or materials. In some cases, burrs are created in cutting plastic parts or materials as well. The problem that burrs create stems from their build up. When a machine part becomes “impacted” by a build-up of burrs, the end-product coming off that machine can suffer quality issues. As anyone in the manufacturing industry can imagine, rough edges on a piece of metal that is meant to be combined or joined with another piece of metal is going to negatively impact the seal or the edge or corner of the finished product. In short, rough edges don’t form a perfect joint when fitted together. Burrs can also create a plating build-up on edges, or, in some cases, edge fractures in certain kinds of materials. This, of course, can be a serious issue when the end product is meant to hold up well under stress, strain, or pressure. Fortunately, much can be done to eliminate the presence of burrs in manufacturing, saving product quality, reducing waste, and improving finished product numbers. Deburring is one of the solutions.

Some have asked about the deburring process, how it’s accomplished. We’ve engineered and built deburring solutions to meet the needs of numerous manufacturers in a wide variety of industries and markets. And, although each solution is often tailored to the needs of the client, the deburring process is much the same.

We have a number of deburring machines on hand to perform a wide variety of different processes on common types of gears, sprockets, and similar machine parts. In developing a solution, we know that certain variables – such as cycle times, part sizes, loading, and other specific limitations – must be considered. The processes developed by CDMC often allow for brushing and deburring on both sides of each part as it passes through the machine. In some cases, the parts are fed to the machine manually. In others, robotic loading is employed. Some machines make use of a magnetic conveyor belt (each part can be subsequently demagnetized as it exits the machine when needed). In the end, the process offers a consistent, reliable, and repeatable deburring to the part that is fed to the machine.

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Unique Deburring Applications

As a company of highly-experienced designers, engineers, and manufacturers of deburring equipment, the Cleveland Deburring Machine Company (CDMC) has enjoyed a long history of working with clients in all areas of manufacturing and creating some of the best deburring solutions for nearly any application.

Over the years, we’ve designed and developed a number of deburring and metal finishing methods and created a line of truly competent deburring machines. Never satisfied with the status quo, we’re always redesigning and improving our work. Through the use of robotic loading, our deburring machines are able to take a large amount of work off the hands of employees who, in the past, had to manually feed and flip each part before the nylon brushes could do their work.

Another benefit to working closely with our clients and listening to their needs, is that we’ve learned to use our talents and our deburring know-how to create a number of unique deburring applications for a wide range of markets. To address material removal and stripping, CDMC has designed and built equipment that can strip friction material from steel backing plates. We built an operator-loaded deburring machine that makes use of a single wire brush to remove 1/16″ thick material (in a one inch width strip) from a 12″ disc in about sixty seconds. The internal coolant for this specialized machine keeps the brush and the parts from overheating during the material removal and stripping process. The machine can be easily integrated with auto-loaders if the need is present.

One of our unique deburring applications came from a request by a client in the semiconductor manufacturing industry who required a process that would create a precision-honed and highly-polished surface on fluid fittings. Each of these fittings would be used to transport gases in potentially-volatile atmospheres. Leakage was a primary safety concern. CDMC was able to deliver a solution to the client that made use of a variety of media. The resulting process was one in which each fluid fitting was honed and polished on multiple surfaces. The process required six stages but worked beautifully.

Another unique deburring application developed by the team at CDMC is for the aluminum finishing market. One of our clients asked us to design and develop a process that would expertly apply a brushed finish to aluminum sheets. The brushed aluminum sheets were subsequently punched and stamped to make front-load washing machine doors. Even though the output requirements set forth by the client were fairly small in scale, the process had to be exact and uniform from one piece to the next. CDMC developed a solution for this client that involved a brush platen fitted with six 4″ nylon disc brushes. Each aluminum sheet is loaded by hand. Afterward, the sheet is advanced to a position where it is secured by a vacuum table. When the sheet is in position, the brush platen lowers, and a brushed finish is produced inside of a four-second cycle time.

At CDMC, we strive to provide the most cost-effective deburring solutions, and the best customer service in the industry – whatever your unique application need may be. Contact us today with your deburring application needs and we’ll show you what we can do.

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Automotive Industry Deburring Processes

Today, the automotive industry is an advanced and highly-competitive manufacturing and technology sector that requires frequent revalidations of their manufacturing process design for continual safety and process improvement.

Deburring, of course, plays a valuable role in any manufacturing process. Over the many decades – since the time when the American automobile industry first began and the Duryea Brothers, Ransom Olds, the Jeffery Company, and Henry Ford began putting numbers of automobiles in production – the automobile manufacturing industry has greatly benefitted from the development and advancement of deburring and related technologies. But what was surely a wholly in-house manufacturing industry back in the early days, where each auto part was fabricated on-site for assembly at a later time (often under the same roof), has become an industry of many parts-providers working to supply the needs of Big Auto.

As many auto assembly processes require parts outsourced to third-party companies, the deburring of those parts is a challenge for small contract manufacturers. These small manufacturing groups are tasked with turning out a large number of parts on a regular demand – a contract, no doubt, that each parts manufacturer relishes greatly.

The call for deburring processes at each of these parts suppliers for Big Auto typically relates to powdered metal parts pressed into a wide variety of shapes that are used in many automotive and fluid power applications. The need for deburring in this industry concerns overall finished product quality, individual part aesthetics, safety (especially with edges and fittings), as well as functionality and operation of all working parts. As a result, many (if not all) of these third-party automotive parts require deburring on both sides and on all edges to ensure that there is no interference in part fitting, scratches on mating surfaces, plating build-up at edges, or edge craters or other symptoms of non-smooth edges. Obviously, when valuable automotive industry contracts are on the line, it is in the best interest of the parts provider to only deliver parts that are free from burrs and shavings on seams and edges.

In a high-production environment, many automotive parts manufacturers have moved from manual deburring processes – where the deburring of each part utilized a nylon disc brush and was hand-flipped by an operator – to processes that make use of robotic loading, where each part is simultaneously brushed on both upper and lower edges via large-diameter radial brushes that approach the spindle-clamped part on two axes. These modern deburring machines are generally self-contained so that coolant may be applied throughout the process. And due to the specific nature of this high-quantity parts production environment, variable-speed brush motors allow best optimization of the process to accommodate different parts.

In the end, improved product quality, reduced process downtime, and increased output are all real benefits to deburring in the automotive parts manufacturing industry.

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