Brush™ Turning

Safety Measures

Dust and cutting chips generated when using this product can cause blindness and injury. Dust and particles generated by this product can cause lung damage, skin irritation, and allergies. Wear protective gear such as goggles, a face mask, gloves, and earmuffs when using this product. Additionally, ensure your skin is covered with clothing. Use a dust collector or other means to collect chips, dust, and other substances to prevent them from scattering into the surrounding environment. Install an enclosure to prevent persons other than the operator from entering the work area and ensure that all persons in the work area wear protective gear. Be aware of fire risk caused by heating, sparks or other factors when using this product. Do not use the product in the proximity of flammable liquids or in explosion-proof areas.

Operating Precautions

The product may break, fracture or be dislodged from the machine tool, causing operator injury or loss of sight. Observe the following steps to prevent damage to the machine tool, jig, fixture or workpiece:

Dust and chips generated by using the product can affect the sliding parts of the machine tool. Remove dust and chips by using a sludge collection system, an oil skimmer or other means.
Use a tool holder that fits the shank of this product.
Use the product on a machine tool that controls rotational speed.

Discontinue use immediately in the event of abnormal vibration or other abnormal conditions. The tip of the tool may become overheated when used for a prolonged period of time. This may cause ceramic fiber bristles to break loose and possible operator injury or loss of sight. Adjust the machining time to prevent the workpiece from overheating. Do not touch the machined area of the workpiece with bare hands. Ensure the product is used within the standard machining parameters. When setting the depth of cut, make sure that there is no interference between this product and the workpiece.

Pre-use Inspection

Perform a test run after setting up the tool on the machine, making sure it is secured firmly and there is no vibration or other abnormalities.

Make sure that the brush is free of any visible damage or abnormality prior to use.

Deburring of multiple crossholes

The round shank version (A11-TB025 + TM-SH-06) is 11 mm high, enabling 12 mm bores and ID threads to be deburred. The flexible fibers of the brush deburr multiple crossholes as they are pulled out of a bore. The small brush (φ2.5 mm) can negotiate crossholes up to 3 mm in diameter. The large brush (φ6 mm) can be used to deburr any size crosshole. Running the spindle clockwise and then counter clockwise results in even deburring of crossholes.

Automate deburring and polishing in your CNC lathe

“What if we could make a ceramic fiber brush for CNC lathes. It would represent a major advance in deburring techology.” And so, the idea of a ceramic fiber brush for turning was born. However, it was not realized overnight. Applying our unique brush material to a stationary tool presented many hurdles. Driven by a desire to challenge technological norms and some forward-thinking users who believed in its potential, we have succeeded in developing a solution for automated deburring and polishing in CNC lathes immediately after turning processes. This truly is one of a kind.

Round and square shank types for ID and OD deburring in the same chucking.

Trzonki okrągłe i kwadratowe do usuwania zadziorów na średnicy wewnętrznej i zewnętrznej w tym samym mocowaniu.

Automated deburring on CNC lathes

XEBEC Brush™ Turning is the first practical application of ceramic fiber brushes for deburring on CNC lathes. It is mounted on the turret and used along side other static tools. Removing burrs on the same machine as facing and turning operations realizes important time and cost savings. It also eliminates the variable quality and danger inherent to manual deburring, particularly when the operator has to reach into the machine to deburr by hand. XEBEC Brush Turning has been tested and proven in a variety of production environments, ranging from job shops to mass production plants. It is ideal for removing micro burrs under 0.01 mm and fine burrs no thicker than 0.1 mm. Brushes are available in three grit equivalents (red, white and blue), two sizes (φ2.5 mm and φ6 mm), and two shapes (tapered and flat). Typical applications are crosshole deburring (ID and OD), thread deburring, and groove polishing.

Adjustable brush angle

The brush angle of the square shank type is adjustable to optimize the deburring action, whereas the brush angle of round shank type is fixed at a shallow angle. The advantage of shallow angles (closer to horizontal) is that they allow the flexible fibers to deburr discontinuous surfaces such as crossholes. The square shank type also enables steep brush angles (near perpendicular). This concentrates the grinding power of the ceramic fibers in the tip of the brush, making it ideal for thread deburring.

Specification

Applicable equipment

This tool can be mounted on:

Lathe
(with live tools)

Lathe
(without live tools)

Tool composition

Brushes

Square shanks

How to use (cont’d)

Depth of cut (Square shank)

The usable bristle length and maximum depth of cut of the square shank vary with the brush angle. Depth of cut is no more than 2.0 mm. Refer to the following tables for details.

Crosshole deburring mechanism (Round shank)

A shallow brush angle and large depth of cut are required to remove burrs on crossholes. The pressure exerted on the brush pushes it into a crosshole, with its tapered tip scraping off burrs as the brush is pulled back and out of the hole. If cycle time permits, the workpiece should be rotated both clockwise (CW) and counter-clockwise (CCW) for uniform edge quality.

The maximum crosshole size for the small brush (A11-TB025) is φ3 mm. The bristles of the small brush are stiffer than the larger brush because they are only half the length. This limits the size of crosshole which can be deburred. The large brush (A11-TB06) has no crosshole size restriction.

External thread deburring mechanism (Square shank)

A steep brush angle is required to remove burrs on an external thread. The recommended brush angle for deburring the crests is 22.5 degrees. This concentrates most of the grinding power in the tip of the brush, while preventing bristles from being deflected on either side of a crest. Spreading and deflection of the brush results in a loss of grinding power and should be avoided.

The workpiece should be rotated clockwise (CW) for a right-hand thread and counterclockwise (CCW) for a left-hand thread. If the correct rotational direction and brush angle (22.5 deg.) are used, the brush can be pulled easily along the thread. However, the angled brush will catch on the thread and break if the incorrect rotational direction is used.

Tool selection

How to use

Pull the brush, do not push

This is a specialist pull turning and facing tool. Pulling the brush reduces bristle deflection and negotiates discontinuous geometries such as crossholes. The bristles will break if the brush is pushed. The tool must be pulled in the x-axis away from the main spindle when facing and pulled in the z-axis away from the main spindle when ID or OD deburring.

Depth of cut (Round shank)

The brush angle of XEBEC Brush Turning Round Shank is fixed at 20 degrees. Maximum depth of cut is 2.0 mm.
Usable bristle length varies with the brush diameter.

Brush angle (Square shank)

The square shank has eleven different angles to match the deburring edge. Arrows indicate permissible cutting direction.