Conical Tip Rotary File High Speed Steel

Item No:MP61718

 

 

"Conical tip rotary file high speed steel

Diameter:12mm

Length:55mm

Working part length: 25mm

Handle size: 6mm"

 

 

1. Core structure and working principle

 

1. Analysis of conical tip design

Conical geometry: The diameter gradually narrows from the shank end to the tip (the tip diameter is usually less than 12mm) to form a conical cutting surface for easy penetration into narrow spaces or machining conical holes;

 

Sharp tip characteristics: The tip has a small radius of curvature, which can accurately position the processing point, suitable for detailed carving or grinding in narrow areas;

 

High-speed steel material (HSS): Contains tungsten, molybdenum and other alloy elements, has a hardness of HRC62 -68, and has a wear resistance that is better than ordinary carbon steel. It is suitable for medium-speed cutting of metals, wood and other materials.

 

2. working principle

Driven by electric mills, pneumatic polishers and other equipment (rotating speed 10,000 - 30,000 revolutions/min), the spiral cutting edge (or grid pattern) on the conical surface is used to grind and mill the workpiece, and precise processing is achieved through tip cutting., the tapered profile can be adapted to grooves or tapered holes at different angles.

 

 

2. Specific uses

1. Metal processing field

Machining conical holes and inverted conical surfaces

Machine conical holes (such as conical pin holes, funnel-shaped guide holes) in metal parts to adapt conical connectors;

Grind the mold cavity and the inverted conical surface of mechanical parts (such as correcting the draft angle of injection molds) to ensure smooth demoulding of parts.

 

Deep hole and narrow gap grinding

Deburring and chamfer deeply into the bottom of deep holes (such as holes with a length more than 5 times the diameter), which is difficult to reach by ordinary straight-handled files;

Grind the edges of narrow slit structures such as gear grooves and chain guides to eliminate residual burrs (such as tooth root burrs after gear heat treatment).

 

Shaped structure carving

Engrave words and patterns on metal signs and jewelry (such as silver ornaments and bronzes), and use the flexibility of conical tips to achieve fine line processing;

Processing special-shaped grooves of mechanical parts (such as curved grooves of camshafts, curved grooves of medical devices).

 

2. Wood and crafts processing

Wood carving detail carving

Carve the sharp edges and curved surfaces of wooden handicrafts (such as the tip of a figure statue, animal hair texture), and the tapered tip can accurately control the cutting depth;

Process deep and narrow ravines in root carvings to simulate natural textures (such as cracks in bark).

 

Decoration of furniture tenon and mortise structure

Trim the surface of tapered tenons (such as wedges and tenons in Ming and Qing furniture) to ensure that the tenons and tenons fit tightly, or machine tapered mortises on wooden boards.

 

3. Plastics and composite processing

Model making and shaping

Engraving details on plastic models (such as model aircraft and car models)(such as rivet holes on aircraft skins, car grille patterns), tapered tips can avoid damage to the model caused by large-area cutting;

Processing conical interfaces of carbon fiber composite materials (such as connection holes of drone arms) to ensure assembly accuracy.

 

Repair of defects in injection molded parts

Trim flash edges and shrinkage holes in injection molded parts (such as sharp corners of toy parts), or machine conical cooling holes in the plastic shell.

 

4. Automobile and machinery maintenance

Precision repair of parts

Repair the conical oil passage holes in the engine block (such as the oil nozzle mounting holes) to eliminate the hidden danger of oil leakage caused by wear;

Grind the inverted tapered surfaces of the transmission gears (such as synchronizer cone rings) to restore gear shifting smoothness.

 

Pipe and valve processing

Machine conical flares at the ends of copper pipes and aluminum pipes to adapt conical pipe joints (such as bellmouth connections in refrigeration systems).

 

 

 

3. Precautions for use (optimization of safety and efficiency)

Equipment and installation points

Confirm that the size of the tool chuck is 6mm and needs to be tightened during installation to prevent slipping. If vibration is found during high-speed rotation, stop the machine immediately to check the concentricity;

Avoid long-term continuous operations during metal processing to prevent overheating and annealing of high-speed steel (hardness decreases above 600℃).

 

operation specifications

When processing metal, keep the angle between the tool and the workpiece at 10°-20 °, and move evenly along the conical outline to avoid the tip vertically hitting the workpiece and causing edge collapse;

When carving wood, cutting in the direction of the wood grain can reduce cracking, and the rotating speed needs to be reduced against the wood grain.

 

Maintenance and loss judgment

When the working head appears obvious wear (such as dull cutting edge, missing tip), it needs to be replaced in time to avoid overloading the equipment due to increased cutting resistance;

After processing, use a wire brush to clean the remaining metal chips or wood chips at the edge to prevent clogging of the cutting groove.

 

4. The difference from other rotary files

Compared with cylindrical rotary files: conical tips are more suitable for processing conical structures, deep and narrow spaces or scenes requiring precise positioning, while cylindrical files are suitable for large-area polishing of flat or cylindrical holes;

 

Compared with spherical rotary files: Conical files have stronger tip cutting capabilities and are suitable for straight or diagonal engraving, while spherical files are more suitable for curved polishing or circular groove processing.

 

 

 

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