Four-blade reamer / Spiral chip removal reamer
The HR652 series of spiral-fluted through-hole reamers are powerful tools designed by JIAYI Tools specifically for machining difficult-to-machine materials such as stainless steel, titanium alloys, and superalloys. Their innovative "spiral flutes + large chip-carrying grooves" design, It achieves a breakthrough in "spiral chip evacuation, zero tool sticking, and high surface finish" when machining materials prone to sticking to the tool, completely resolving the industry pain points associated with traditional straight-edge reamers, such as "poor chip evacuation, tool sticking, and scratches on the bore walls," It provides disruptive through-hole machining solutions for the aerospace, energy equipment, and medical device industries.
| Part number | HR652 Series |
|---|---|
| Type | Carbide Reamers |
| Product name | Six-Flute Deep-Hole Reamers/Through-Hole Reamers |
| Example size | D10.65 × 22L × D10 × 186L |
| Coating | Nano DLC |
| OEM / ODM | Made to your samples or drawings |
| Origin | Shenzhen, China |
Design details that keep reaming stable, accurate and chatter-free.
Features a 6-edge structure with unequal pitch to disrupt the cutting vibration frequency; the edge features a 0.002 mm tapered + variable-width design to ensure even force distribution during long-edge cutting, resulting in hole walls free of steps and vibration marks.
The cutting edge features a 35° helix angle, allowing chips generated during cutting to be naturally evacuated along the helical grooves, thereby preventing chip buildup and tool adhesion. This design improves chip evacuation efficiency by 50% when machining stainless steel and titanium alloys.
The cutter body is machined from a single piece of ultra-fine-grain carbide (HRC 68) with no welded joints, ensuring no loosening or runout during high-speed, high-feed machining, with a repeatability of ≤0.003 mm.
Utilizing PVD nano-coating technology, this coating is only 1.5 μm thick and has a coefficient of friction as low as 0.15. It is better suited for materials prone to tool sticking than traditional TiAlN coatings and extends tool life by 2.5 times.
Features three built-in helical internal cooling channels with a cooling pressure of up to 120 bar. Combined with a large-capacity chip-discharge groove design, this system increases chip evacuation speed by 50% and prevents chips from scratching the bore walls.
The front blade strip features a 15° guide angle to reduce entry-side compression deformation; the rear blade strip features a 0.002 mm mirror-finish blade to ensure the exit side is free of chipping and burrs, with a consistent hole wall surface roughness of Ra ≤ 0.15 μm.
The front angle features an adaptive design ranging from 5° to 8°, which automatically optimizes cutting force when machining different materials, reduces tool wear, and improves machining stability.
Each reamer passes a G2.5-grade dynamic balancing test, ensuring vibration-free operation at high speeds of 20,000 rpm and guaranteeing machining stability.
Starting values. Our engineers can tune parameters to your machine and workpiece.
| Workpiece material | Cutting speed vc (m/min) | Feed f (mm/rev) | Coolant |
|---|---|---|---|
| 316L Stainless Steel | 60–90 | 0.05–0.12 | Internal + MQL |
| High-temperature alloy Inconel 718 | 30–50 | 0.03–0.08 | High-pressure internal |
| Ti6Al4V titanium alloy | 50–80 | 0.04–0.1 | MQL |
Typical bores and industries for this reamer.
Machining φ3–φ12 mm through-holes in titanium alloy and superalloy substrates used in aircraft engine blades and landing gear, with a hole wall surface roughness of Ra ≤ 0.15 μm, without tool sticking or scratching.
Machining φ5–φ20 mm guide pillar holes in HRC 55 + quenched steel mold plates, with a hole wall surface roughness of Ra ≤ 0.15 μm, meeting high-precision fit requirements without the need for grinding.
Machining φ1–φ6 mm through-holes in stainless steel and titanium alloy substrates for orthopedic implants and surgical instruments to ensure the precision and biocompatibility of medical devices.
Machining φ4–φ16 mm fluid passages in stainless steel and high-temperature alloy substrates for gas turbines and hydraulic valve blocks to meet the sealing requirements of high-pressure fluid systems.
Send your bore size, tolerance and drawing. We manufacture standard sizes and custom reamers made to your samples or drawings.