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How to remove burrs?
These are the most important deburring processes
Process-reliable production with consistently high product quality and high cost pressure - these are the basic conditions for a parts manufacturer. This makes it all the more important that you carry out the final production steps of deburring, polishing and rounding as economically as possible while ensuring consistent quality.
Various deburring processes have been established for deburring, which have different effects on process reliability and costs. From handheld deburring to machine deburring with cutters, milling cutters or brushes to robot deburring, you will find the largest range of high-quality deburring tools at KEMPF.
In addition, alternative deburring processes such as electrochemical or thermal deburring, high-pressure water jet deburring, grinding, ultrasound, sandblasting or shot peening have also become established.
Would you like to find out more?
Here you will find an overview of the most important deburring processes with advantages and disadvantages »
What is deburring? In almost all machining processes, cutting, drilling or milling produces unwanted burrs, i.e. excess material, on the machined workpiece. Nowadays, the removal of burrs, i.e. deburring, is essential for quality and precision parts.
Why deburr? On the one hand, burrs can impair the function of the end product machine, e.g. due to inaccuracies of fit or poor thread flow. This means that process reliability is no longer guaranteed. Secondly, they pose a risk of injury from cuts. Qualitative specifications for the finished component also often require a high degree of burr freedom, e.g. in the medical or food sector.
By removing burrs, you improve the service life and reliability of your products, meet high quality standards and thus ensure greater customer satisfaction and loyalty.
How do you deburr correctly? Deburring is most economical and reliable if you integrate it directly into the machine and receive your workpiece deburred at the end of the process. As a result, you benefit from reproducible, high-quality deburring results, save process costs and throughput time and can use previously tied-up resources elsewhere. Your decisive competitive advantage!
After more than 60 years of experience in metal machining, we at KEMPF have extensive expertise in deburring, drilling, milling, turning, grooving and roller burnishing stainless steel, aluminum, cast iron, plastic and, of course, metal. We can offer you a high-quality standard or special tool for almost any application quickly and cost-effectively.
How massive can a burr be?
The size of the burrs or the thickness of the burr root is a decisive factor in selecting the optimum deburring solution. In general, the more massive the burr, the fewer deburring solutions there are. Therefore, the focus is on designing the pre-machining in a way to minimize burrs as much as possible. One option is to use specially developed tools such as burr-minimizing drills or special deburring cutters that also avoid secondary burrs. One option is to use specially developed tools such as burr-minimizing drills or special deburring cutters that also avoid secondary burrs.
Why is burr-minimal machining important?
Deburring is a time-consuming and therefore cost-intensive work step and is therefore an important item in the cost calculation.
Depending on the #burrfree requirements of the workpiece edge, a well-designed burr-minimizing machining process can possibly eliminate the need for a deburring tool afterwards. If this is successful, a very economical machining process is achieved without the use of another tool.
But even if the use of a further tool remains necessary, burr-minimal pre-machining is always important, because deburring tools that follow in the machining process can then be used much more effectively and economically.
Contact us! We would be happy to look at the entire production process with you and advise you on optimization options for burr-minimizing pre-machining!
How does the edge angle influence burr formation?
The edge angle plays a major role in burr formation. The sharper the edge, the larger the burr that is generated.
At chamfered edges or countersunk holes, only a minimal burr occurs from a blunt edge angle of < 45° and practically no burr at 30°. Extremely positive, acute edge angles make deburring much more difficult. Pointed edge angles on the workpiece should therefore be avoided wherever possible.
How does the machining tool influence the burr formation?
In order to be able to produce a component that is as free of burrs as possible, it is NOT only the actual deburring tools that are important. Rather, it is also important to keep an eye on the actual "preparatory work". Not only chip- and edge angles have an influence on burr formation, the tool itself plays a crucial role.
Optimized cutting tools with sharper cutting edge geometries also generally lead to less burr formation - with shorter tool life. However, in the field of machining non-ferrous metals, for example, it is possible to achieve both the goal of minimi- zing burrs and the goal of maximizing tool life. The use of PCD as a cutting material and an appropriate tool design make sense here.
How do application parameters influence burr formation?
Burr minimization can also often be achieved by adjusting the machining parameters where the tool meets the workpiece edge. For example by:
- Reduction of the depth of cut for a face milling operation
- Reduction of the feed rate at the exit of the bore hole

The #burrfree 1x1
What is a burr?
In order to be able to remove a burr without leaving any residue or to be able to machine a workpiece #burrfree, it is first necessary to define what a burr actually is.
According to German Standard DIN ISO 13715, workpiece edges are considered "burr-like" if their protrusion is a deviation of > 0.05 mm from the ideal geometric shape. Smaller burrs are considered sharp-edged or even #burrfree. In practice, the picture is somewhat different. Which burr heights or burr root thicknesses are still accepted on a workpiece edge depends strongly on the requirements of the component and differs from application to application.
Why is #burrfree straight out of the machine so important?
With the ever more complex requirements for high-precision components with increasingly difficult workpiece contours, today's competitive advantage lies in manufacturing these components with a consistent high quality - #burrfree.
If deburring is implemented in the production process of the CNC machine, not only time is saved, but resources are also gained that were previously tied up. CNC deburring with the use of machine deburring tools almost always leads to lower unit costs in series production and at the same time to fewer quality defects or complaints from the end customer.
Advice from our deburring experts
We will be happy to look at your entire machining process together with you to find the most economical and reliable solution for your specific application.
If our large range of standard tools does not provide a suitable tool specifically for your application, we can offer you special tool solutions for even the most atypical cases.
You can rely on our expertise from over 60 years of experience in metal machining. Whether intermediate sizes or the complete redesign of a tried and tested tool - we at KEMPF can certainly help you.
Give us a call or fill out our contact form ! We look forward to your inquiry.
We'll smarten you up!

In our popular online seminar "#burrfree straight out of the machine", which deals specifically with the topic of "deburring" and burr-minimizing pre-processing, we give you an overview of this extensive topic and support you in solving any processing problems that arise.
SIGN IN NOW FREE OF CHARGE »
How to remove burrs?
These are the most important deburring processes
Process-reliable production with consistently high product quality and high cost pressure - these are the basic conditions for a parts manufacturer. This makes it all the more important that you carry out the final production steps of deburring, polishing and rounding as economically as possible while ensuring consistent quality.
Various deburring processes have been established for deburring, which have different effects on process reliability and costs. From handheld deburring to machine deburring with cutters, milling cutters or brushes to robot deburring, you will find the largest range of high-quality deburring tools at KEMPF.
In addition, alternative deburring processes such as electrochemical or thermal deburring, high-pressure water jet deburring, grinding, ultrasound, sandblasting or shot peening have also become established.
Would you like to find out more?
Here you will find an overview of the most important deburring processes with advantages and disadvantages »
We'll smarten you up!

In our popular online seminar "#burrfree straight out of the machine", which deals specifically with the topic of "deburring" and burr-minimizing pre-processing, we give you an overview of this extensive topic and support you in solving any processing problems that arise.
SIGN IN NOW FREE OF CHARGE »
How to remove burrs?
These are the most important deburring processes
Process-reliable production with consistently high product quality and high cost pressure - these are the basic conditions for a parts manufacturer. This makes it all the more important that you carry out the final production steps of deburring, polishing and rounding as economically as possible while ensuring consistent quality.
Various deburring processes have been established for deburring, which have different effects on process reliability and costs. From handheld deburring to machine deburring with cutters, milling cutters or brushes to robot deburring, you will find the largest range of high-quality deburring tools at KEMPF.
In addition, alternative deburring processes such as electrochemical or thermal deburring, high-pressure water jet deburring, grinding, ultrasound, sandblasting or shot peening have also become established.
Would you like to find out more?
Here you will find an overview of the most important deburring processes with advantages and disadvantages »
How to remove burrs?
These are the most important deburring processes
Process-reliable production with consistently high product quality and high cost pressure - these are the basic conditions for a parts manufacturer. This makes it all the more important that you carry out the final production steps of deburring, polishing and rounding as economically as possible while ensuring consistent quality.
Various deburring processes have been established for deburring, which have different effects on process reliability and costs. From handheld deburring to machine deburring with cutters, milling cutters or brushes to robot deburring, you will find the largest range of high-quality deburring tools at KEMPF.
In addition, alternative deburring processes such as electrochemical or thermal deburring, high-pressure water jet deburring, grinding, ultrasound, sandblasting or shot peening have also become established.
Would you like to find out more?
Here you will find an overview of the most important deburring processes with advantages and disadvantages »
How to remove burrs?
These are the most important deburring processes
Process-reliable production with consistently high product quality and high cost pressure - these are the basic conditions for a parts manufacturer. This makes it all the more important that you carry out the final production steps of deburring, polishing and rounding as economically as possible while ensuring consistent quality.
Various deburring processes have been established for deburring, which have different effects on process reliability and costs. From handheld deburring to machine deburring with cutters, milling cutters or brushes to robot deburring, you will find the largest range of high-quality deburring tools at KEMPF.
In addition, alternative deburring processes such as electrochemical or thermal deburring, high-pressure water jet deburring, grinding, ultrasound, sandblasting or shot peening have also become established.
Would you like to find out more?
Here you will find an overview of the most important deburring processes with advantages and disadvantages »
We'll smarten you up!

In our popular online seminar "#burrfree straight out of the machine", which deals specifically with the topic of "deburring" and burr-minimizing pre-processing, we give you an overview of this extensive topic and support you in solving any processing problems that arise.
SIGN IN NOW FREE OF CHARGE »