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KULLEN-KOTI GmbH

KULLEN-KOTI GmbH

  • DIN EN ISO 14001:2004
  • DIN EN ISO 9001:2015

KULLEN-KOTI GmbH

  • DIN EN ISO 14001:2004
  • DIN EN ISO 9001:2015

09.09.2021 01:09

With precision and efficiency to the round edge

KULLEN-KOTI presents brush solutions for automated deburring

Accompanied by comprehensive hygiene and safety concepts, the organisers of DeburringExpo (Karlsruhe), BlechExpo (Stuttgart) and MSV (Brno/Czech Republic) are planning to hold their trade fairs in October and November. The brush manufacturer KULLEN-KOTI has confirmed its participation in all three trade fairs and will focus the exhibition on its tool brushes for the fully automated deburring of metallic components and semi-finished products. The company's abrasive disc brushes, which play a central role in the process-integrated rounding of laser blanks or stamped parts, are a technological highlight.

Today, high-performance abrasive brushes for process-integrated deburring and rounding can be found in many tooling magazines of modern machining centres. Disc brushes and internal brushes from the KULLEN-KOTI portfolio play a leading role here. They can be designed to suit specific customers and applications and, as abrasive tools, are often located directly next to the milling heads and high-speed drills in the quick-change magazines of the production and robot cells. At the forthcoming DeburringExpo (12.-14.10.21) and Blechexpo (26.-29.10.21), as well as at the MSV (8.-12.11.21), these technical brushes will form the thematic centre of KULLEN-KOTI's planned trade fair appearances. In particular for experts from the fields of machine tool construction, production automation and robot-assisted metalworking, it is extremely worthwhile to find out more about these tool brushes.

Oscillating edge run

In addition to the widely used roller brushes from KULLEN-KOTI, the company's cast disc brushes and turned interior brushes are becoming increasingly important in the implementation of process-integrated and fully automated deburring solutions. For the highly flexible all-round machining of large cast and forged parts, the disc brushes are used, for example, as deburring tools for industrial robots. If, on the other hand, the specific rounding of the edges of prefabricated laser, punching and flame-cut parts is required, the planetary heads of fully automated production lines equipped with several oscillating and rotating disc brushes prove to be the optimum solution. It is particularly worth mentioning here that KULLEN-KOTI disc brushes are characterised by very dense trimmings cast deep into the brush bodies, which exhibit extreme dimensional stability. This not only enables high stock removal rates, but also very precise, homogeneous and defined edge finishing.

Turned precision for interiors

While the cast disc brushes from KULLEN-KOTI are primarily used for external machining, the company's turned internal brushes prove their worth in deburring and finishing bores, internal threads and hollow bodies. In addition, the rounding of edges on O-ring recesses, transverse bores and other intersections, as well as the cleaning out of internal threads, are among the major areas of application for these abrasive brushes. In many places, the internal brushes, which are available with cylindrical, conical or stepped cross-sections, are standard tools for equipping multi-axis articulated robots in the highly automated production lines of the automotive industry.

The ideal brush solution for deburring

In principle, all abrasive brushes from KULLEN-KOTI are designed to ensure a consistent level of quality over a long operating time during process-integrated deburring and rounding. An important prerequisite for this is that both the disc brushes and the internal brushes are optimally matched to the specific application. Among other things, the geometry and material of the components to be machined must be taken into account and the fill material as well as the size and type of abrasive grain must be adapted accordingly. The combination of polyamide filaments and embedded abrasive grain made of silicon carbide, aluminium oxide or diamond, for example, has proven itself many times in deburring technology. In addition, the targeted cycle times and the special conditions of face or circumferential machining have a major influence on the selection of the abrasive brush. Depending on the application, a wire brush with percussive abrasion can also show a better deburring result than a grinding abrasive brush. If the machine or system builder involves the brush manufacturer during the development phase, the technical performance parameters of the machining centre or production cell can be directly incorporated into the specific design of the required tool brushes.

The use of the right deburring brushes opens up a great deal of scope for the user to optimise his processes in the context of integrated, fully automated metalworking. The mere fact that a component is machined directly in the machining centre or in the robot cell close to the final contour - i.e. no further mechanical machining process is required - can mean an enormous leap in efficiency. Not to be forgotten is also the advantage in terms of occupational safety, because the risk of cutting injuries typical of manual deburring is completely eliminated with process-integrated brush deburring.

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