Spiral point tap for non-ferrous metals- Nanjing Arrow-Stone

Spiral point tap for non-ferrous metals

Colored metal tip tap, suitable for materials such as aluminum/copper, high-precision, efficient processing, assisting in the manufacturing of non-ferrous metal threads.

Key words:

Classification:

Point tap

Key words:

Tool matrix-Fixture matrix

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86-025 84958290

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Non-ferrous Metal End Tap - High-Precision Non-ferrous Metal Thread Machining Solution

Product Overview

Specifically developed for non-ferrous metal materials such as aluminum, copper, zinc, and magnesium alloys End Tap , adopting a unique spiral groove design and high-precision cutting edge treatment, solves the problems of easy chip adhesion, unstable thread accuracy, and short tool life in non-ferrous metal processing. It is suitable for through-hole and deep-hole thread processing and is widely used in aerospace, electronic communications, auto parts, hardware manufacturing, and other fields, making it an ideal choice for high-precision thread processing.

Core Advantages

1. Strong Material Compatibility

Targeted Design : Optimized cutting angles (rake angle 12°-15°, clearance angle 8°-10°) are designed for the soft and highly ductile properties of non-ferrous metals to reduce cutting resistance and chip adhesion.
High-Quality Material : Made of cobalt-containing high-speed steel (M35/M42) or powder metallurgy high-speed steel (PM-HSS), with a hardness of 64-66HRC, the wear resistance is increased by 30%, suitable for high-speed cutting (speed up to 80-150rpm).

2. High-Precision Thread Forming

Leading Guide Structure : The 3-4 tooth guide cone design ensures the accuracy of the thread starting position, avoiding skewed holes and misaligned teeth, and the thread accuracy can reach ISO 4H/6H grade.
Surface Coating Treatment : Optional coatings such as TiN, TiCN, and AlTiN reduce the friction coefficient (friction coefficient ≤0.3) and improve surface finish (thread surface roughness Ra≤1.6μm).

3. Efficient Processing, Reduced Costs

Smooth Chip Removal : The large helix angle (35°-45°) design, combined with a shallow groove depth structure, quickly removes the long strip chips generated during non-ferrous metal processing, avoiding clogging.
Long Life Performance : The number of processing times for a single tap is increased by 50% compared to ordinary taps, reducing the frequency of tool changes and reducing processing time and tool wear costs.

4. Complete Specifications, Flexible Customization

Standard Specifications : Covers M1.6-M30 metric threads, UNC/UNF American threads, BSW British threads, and supports fine/coarse thread customization.
Special Requirements : The cutting edge arc and coating scheme can be customized according to customer materials (such as high-silicon aluminum alloy, phosphor bronze) and processing equipment (automatic lathes, CNC machining centers).

Technical Parameters

Item	Parameter Range	Standard Configuration	Optional Configuration
Applicable Materials	Aluminum and aluminum alloys (6061/6063/7075), copper and copper alloys (H62/T2), zinc alloys, magnesium alloys	General type (suitable for most non-ferrous metals)	High-silicon aluminum special type, high-phosphorus copper special type
Thread Accuracy	ISO 4H, 6H; ANSI 2B, 3B	ISO 6H (default)	Higher precision grades can be customized
Material	M35 high-speed steel (default), M42 high-speed steel, powder metallurgy high-speed steel	M35 high-speed steel + TiN coating	PM-HSS+AlTiN coating
Helix Angle	35° (through hole), 25° (blind hole)	35° through-hole type (default)	Blind hole special helix angle can be customized
Shank Type	Straight shank (≤M10), tapered shank (≥M12)	Straight shank (M1.6-M10)	Extended shank, shank with oil hole

Application Scenarios

Aerospace : Aluminum alloy landing gear components, titanium alloy joint thread processing (through-hole depth ≤5D).
Electronic Communication : Copper alloy connectors, zinc alloy shell threaded hole processing (hole diameter M2-M6, accuracy requirement 6H).
Automobile Manufacturing : Aluminum alloy engine cylinder block, gearbox housing deep hole thread processing (hole depth ≥10D, anti-chip adhesion design is required).
Hardware and Sanitary Ware : High-precision thread forming of brass valves and zinc alloy accessories (surface roughness Ra≤1.2μm).

Precautions for Use

Lubrication Recommendations : It is recommended to use chlorine-containing or synthetic oil-based cutting fluid for processing aluminum alloys, and emulsified oil can be used for copper alloys to avoid dry cutting that leads to sticking.
Speed control : Adjust according to the hardness of the material. For example, 6061 aluminum alloy is recommended to have a speed of 100-150rpm, and hard copper alloy (such as QBe2) is recommended to have 50-80rpm.
Concentricity requirements : The perpendicularity error between the machine tool spindle and the workpiece should be ≤0.02mm to avoid tap breakage due to eccentric load.

Frequently Asked Questions

Q1: What if the tap life is short when machining high silicon aluminum alloy (silicon content > 12%)?
→ It is recommended to use a special tap made of powder metallurgy high-speed steel + AlTiN coating, with high-concentration cutting fluid, which can increase the life by 20%-30%.

Q2: How to avoid chip clogging during blind hole machining?
→ Choose a blind hole special tap with a 25° helix angle, retract the chip every 2-3 teeth during processing, or use an oil hole shank for internal cooling lubrication.

Q3: What if the surface roughness of the thread does not meet the requirements?
→ Check whether the cutting speed is too high (it is recommended to reduce it by 10%-15%), or replace the mirror coating (such as DLC coating), and ensure the rigidity of the workpiece clamping.

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