Typical Applications Of Honing Brush In The Automotive Engine Industry

The honing brush is a flexible polishing brush for removing burrs. It is made of iron wire as the skeleton, with many neatly arranged and outwardly stretched nylon wires on it. At the top of each nylon wire, there is a small abrasive ball that is not easy to break. This abrasive ball can be composed of various required abrasives such as silicon carbide, aluminum oxide, boron carbide, etc. The abrasive nylon wire is equivalent to the same number of flexible files. When processing parts, it can be bent arbitrarily and naturally fit the inner hole contour of the workpiece. It can grind uneven inner holes (such as stepped or wavy inner holes), and can also enter grooves, cracks and other places that are difficult for general tools to enter, remove burrs, and blunt sharp edges into smooth and uniform arcs, achieving the ideal effect of deburring, edge passivation and surface finishing.

 

 

The advantages of the flex honing brush are that it can automatically locate the center, automatically calibrate, and can perform fine and consistent processing on the hole surface without affecting the original accuracy and size of the workpiece. The honing brush is easy to use, safe, and economical. The method of using the honing brush is to clamp it on a suitable bench drill, vertical drill, lathe, or horizontal grinding machine for processing. When processing relatively heavy and large workpieces, the honing brush can be clamped on an adjustable speed pneumatic drill and hand drill for processing. The speed should be selected according to the size of the workpiece, generally within 80-120 rpm, and the up and down movement speed is about 20 times/minute. Generally, 8-10 reciprocating up and down movements are sufficient. The engine cylinder hone brush must be rotated to enter or move out of the processing hole to avoid deformation of the handle. In addition, use a light lubricant (such as kerosene) during processing, and wrap the surface of the honing brush with a layer of kerosene. This not only has a good effect, but also prolongs the service life of the honing brush. In terms of the selection of diameter specifications, the honing brush is generally 5-15% larger than the diameter of the hole being processed.

 

 

 

The main purpose of abrasive honing brush is to clean the fine burrs on the surface of the finished hole and greatly improve the finish of the inner hole. Typical applications of honing brush include: surface deburring and polishing of workpieces, deburring of the inner groove edge of hydraulic valve holes, deburring of cross holes, deburring of air conditioners and refrigerators (compressors), deburring of cylinders, processing of engine parts, machining, processing in holes, and processing of brake hubs. At the same time, flex hone tool is also suitable for polishing some conical, tapered, and venturi-shaped holes. It can easily and quickly perform surface treatment on cylinders, valves, cavities, and pipes of various shapes and sizes.

 

Typical Applications of Honing Brush in the Automotive Engine Industry

 

The engine is the heart of the car. The tiny burrs left after machining have an increasingly prominent impact on the life and overall performance of the engine as product quality improves. In recent years, the automotive manufacturing industries in Europe, the United States, and Japan have all implemented deburring processes on engine parts production lines, using a variety of special equipment and abrasive nylon honing brushes to achieve a burr-free effect.

 

 

 

Automobile Engine Cylinder Head Production Line

(1) After the cylinder head end face is finely milled, use a honing brush to remove burrs at the intersection of the plane and complex trenches, grooves, and holes, and trim the sharp edges into arcs. After the cylinder head camshaft seat hole is finely bored, use a honing brush to remove burrs.

(2) Car engine camshaft production line: After the camshaft is heat treated, use a honing brush to clean the oxide scale and burrs.

(3) Car engine cylinder block production line: Use a bottle brush honing tool to clean the burrs of the main and auxiliary oil holes and the crankshaft hole.

(4) Car engine crankshaft production line: Use a honing brush of about Φ6mm to clean the oil holes.

(5) Car engine connecting rod production line: Use a Φ44mm small honing brush to clean the burrs.

 

The Use of Honing Brush on Other Automotive Parts

(1) Transmission: Use a honing brush to clean burrs and sharp edges on the valve body end faces and holes.

(2) The deburring process with abrasive nylon honing brush is used in the production of automobile distribution pumps, fuel injection equipment and other parts.

 

 

 

Use abrasive nylon honing brush to remove burrs from housings, holes, screw threads, etc. in motorcycle engines, carburetors, etc.

 

Hydraulic and Pneumatic Components Industry

With the upgrading of host products, the quality requirements for hydraulic parts (hydraulic pumps, hydraulic cylinders, hydraulic valves, hydraulic motors, etc.) and pneumatic components (air valves, cylinders, air source components, etc.) are getting higher and higher. Compared with imported parts, the main problem of domestic parts is the finishing process (the tiny burrs left after machining). Developed countries use a variety of special machines and abrasive nylon diesel engine cylinder honing tool to remove burrs and finish in the production of hydraulic and pneumatic components.

 

Compressor Industry

Processing of automotive air conditioning compressors, air compressors, and refrigerator compressor parts.

 

How to Get a Quick Quote from us:

If you provide us your brush size D (hone diameter or the hole size to be honed), abrasive material and grit size, we will offer you a good price soon. Honing length T (working part length) and total length L can be made as our standard or as required.