BRUSH DIAMETER SELECTION, COVERAGE OF THE ENTIRE PART

Covering the part: The ideal brush should be 70mm larger than the piece to be worked. If a smaller brush is required due to the restriction of the clamping pattern, the centerline of the brush should be aligned so that it protrudes at least 35mm from the targeted corner.

The way the team works: The brush should rotate at full speed and continue to rotate until it detached from the piece and completes its path.
Return direction: The direction of rotation of the brush should be in the opposite direction to the burrs formed by the cutting tool.

While spot types are preferred in general deburring and light-duty surface finish applications, our turbine type disc brushes are used in medium and heavy-duty deburring operations. Both types of disc brushes use ceramic and silicon carbide alloy nylon filaments in an effective combination.

Recommended process parameters.
Era

To prevent the brushes from overheating and smearing the nylon on the surface, the MSMFS should also be operated at a lower speed than the listed maximum speed. The maximum rotation speed written on the brush is not the appropriate working speed. It is recommended to stay below 2,500 rpm for dry applications and below 3,500 rpm for wet applications. The 150mm diameter brush is more effective at 1400 rpm than at 2800 rpm. Excessive speed, especially in brushes with long wires, causes the wires to bend and bounce on the part. Generally, high rpm increases deburring aggressiveness.
Wear compensation:
It is possible to automate wear compensation in special equipment. Using electronic controls, it is possible to monitor the load on the drive motor to adjust the pressure of the brush so that the pressure remains relatively consistent. In Standard CNC machines that do not have automatic load adjustments, different methods such as automatic indexing, probe control or manual adjustment should be used.

Print Depth

For fine-wire brushes, the amount of pressure should be adjusted to penetrate up to 10% of the existing wire length and up to 5% for thick-wire brushes. Generally, by reducing the rotation speed and increasing the pressure, the brush wire fits smoothly into the part lines. In this way, the brush wire does not hit the part and bounces on its surface, but rather picks up burrs along the surface and corners of the part, as if it were a file. This form of brushing also increases the strength of the brush.

PACING

The feed rate is determined by many factors, such as burr size, workpiece material, surface contours, and roughness requirements. Contoured surfaces should be processed at lower speeds and higher prints than flat surfaces. Initial feed rate of 30fpm and 80fpm is recommended, but final feed rate is application-specific and should be developed based on deburring experience.

Application Guidelines