TUNGVARA AU SERIES FOR NON-FERROUS AND SOFT MATERIALS
AU-2B 2 Flute Ball Nose End Mill for Aluminum
Need a ball nose tool for aluminum contours, grooves or programmed 3D surfaces? AU-2B combines a two-flute, 35° helix, uncoated geometry with nine listed sizes from R1.0 to R6.0. Compare the exact dimensions and catalog starting data, then send the model and quantity for current-stock confirmation.
| Product fact | Verified value |
|---|---|
| Brand | TUNGVARA |
| Family | AU-2B |
| Tool type | Solid carbide ball nose end mill |
| Flutes | 2 |
| Helix angle | 35° |
| Coating | Uncoated |
| Radius range | R1.0–R6.0 mm |
| Radius tolerance | R±0.01 mm |
Table of Contents
AU-2B 2 Flute Ball Nose End Mill for Aluminum Product Overview
AU-2B is TUNGVARA’s uncoated 2 flute ball nose end mill for aluminum and other approved non-ferrous or soft materials. Its ball-nose end geometry is intended for programmed contours, radiused grooves and 3D surface toolpaths where a flat-end cutter cannot reproduce the required profile. The family uses a 35° helix and a published radius tolerance of R±0.01 mm. Nine catalog models cover R1.0–R6.0, cutting diameters from 2–12 mm and overall lengths from 50–75 mm, allowing buyers to match the programmed radius, shank diameter, cutting length and reach to the application.
The verified material range rates aluminum alloys, copper alloys, wood, plastic, acrylic and other soft materials as very suitable. The supplied cutting-data table provides starting values for aluminum alloy and silicon-aluminum alloy with Si≤10%. Those values may also serve as an initial reference for other approved soft materials, but final settings should be adjusted and validated for the actual material, machine, holder, tool overhang, chip evacuation and engagement. AU-2B is not the listed choice for steel, stainless steel, cast iron, titanium or heat-resistant alloys.
Why Choose an AU-2B 2 Flute Ball Nose End Mill?
Ball-Nose Geometry for Programmed Profiles
The rounded cutting end is the defining choice when the toolpath requires a ball radius instead of a flat floor. Select the radius from the drawing or CAM program rather than choosing by diameter alone.
Two Flutes for Soft-Material Chip Space
The two-flute layout provides a clear product-selection route for aluminum and other approved soft materials. Actual chip evacuation still depends on engagement, cooling, holder and machine conditions.
Nine Catalog Sizes to Compare
The listed range covers R1.0–R6.0, with cutting diameters from 2–12 mm and overall lengths from 50–75 mm.
2 Flute Ball Nose End Mill for Aluminum Material Fit and Important Limits
| Material group | Published fit | Available guidance |
|---|---|---|
| Aluminum alloys | Very suitable | Size table and catalog starting values are available. |
| Silicon-aluminum alloy, Si≤10% | Parameter column supplied | Use as a starting point subject to machine and setup review. |
| Copper alloys | Very suitable | No dedicated copper speed/feed column is supplied. |
| Wood, plastic, acrylic and other soft materials | Very suitable | Aluminum data may be used as an initial reference; validate and adjust for the actual material and setup. |
| Carbon/alloy/hardened steel, stainless, cast iron, titanium and heat-resistant alloys | Not suitable | Choose another end-mill series matched to the workpiece. |
Starting-data use for other soft materials: yes, the aluminum values can be used as an initial reference for wood, plastic or acrylic. Start conservatively, then adjust and validate for the actual material, chip evacuation, tool overhang, engagement and machine setup.
AU-2B Geometry and Selection Points
| Feature | Verified AU-2B 2 Flute Ball Nose End Mill for Aluminum spec. | Buyer check |
|---|---|---|
| End geometry | Ball nose | Match the programmed radius and surface requirement. |
| Flute count | 2 | Confirm operation and chip-evacuation method. |
| Helix angle | 35° | Do not substitute geometry from another AU family. |
| Coating | Uncoated | Do not specify TiAlN or another coating under the AU-2B catalog model. |
| Radius tolerance | R±0.01 mm | Confirm whether the drawing tolerance and finishing allowance are compatible. |
AU-2B Available Sizes: R1.0–R6.0
Use the order product number as the quotation reference and confirm current availability by exact model and quantity.
| No. | Order product No. | R (mm) | D (mm) | Shank d (mm) | Cutting length H (mm) | Overall length L (mm) | Z |
|---|---|---|---|---|---|---|---|
| 1 | TVR-AU-2B-R1.0S | 1.0 | 2 | 4 | 4 | 50 | 2 |
| 2 | TVR-AU-2B-R1.5S | 1.5 | 3 | 4 | 5 | 50 | 2 |
| 3 | TVR-AU-2B-R2.0S | 2.0 | 4 | 4 | 8 | 50 | 2 |
| 4 | TVR-AU-2B-R2.0 | 2.0 | 4 | 6 | 8 | 50 | 2 |
| 5 | TVR-AU-2B-R2.5 | 2.5 | 5 | 6 | 10 | 50 | 2 |
| 6 | TVR-AU-2B-R3.0 | 3.0 | 6 | 6 | 12 | 50 | 2 |
| 7 | TVR-AU-2B-R4.0 | 4.0 | 8 | 6 | 16 | 60 | 2 |
| 8 | TVR-AU-2B-R5.0 | 5.0 | 10 | 6 | 20 | 75 | 2 |
| 9 | TVR-AU-2B-R6.0 | 6.0 | 12 | 6 | 24 | 75 | 2 |
Starting Cutting Data for AU-2B
These published values are starting points, not guaranteed machine settings. The AU-2B engagement rule supplied with the table is ae=0.2R and ap=0.1R.
| Tool size | R (mm) | Aluminum n (min⁻¹) | Aluminum Vf (mm/min) | Si-Al Si≤10% n (min⁻¹) | Si-Al Si≤10% Vf (mm/min) |
|---|---|---|---|---|---|
| R1.0 | 1 | 40,000 | 2,000 | 32,000 | 1,600 |
| R1.5 | 1.5 | 26,500 | 1,950 | 21,000 | 1,550 |
| R2.0 | 2 | 20,000 | 1,950 | 16,000 | 1,550 |
| R2.5 | 2.5 | 16,000 | 1,950 | 13,000 | 1,550 |
| R3.0 | 3 | 13,000 | 2,000 | 10,600 | 1,600 |
| R4.0 | 4 | 10,000 | 2,450 | 8,000 | 2,000 |
| R5.0 | 5 | 8,000 | 2,200 | 6,500 | 1,750 |
| R6.0 | 6 | 6,600 | 2,050 | 5,300 | 1,650 |
How to Use the AU-2B Size and Starting Data
1. Match the Required Radius
Start with the drawing or CAM-programmed ball radius, then select the corresponding AU-2B R value.
2. Check Every Dimension
Verify cutting diameter, shank diameter, cutting length and overall length against the holder, reach and interference limits.
3. Validate on the Actual Setup
Use the catalog values as an initial reference and adjust after checking rigidity, runout, engagement, coolant and workholding.
Current Stock, MOQ and Lead Time
| Item | Commercial information |
|---|---|
| Current stock | Variable; confirm the exact AU-2B model and quantity. |
| MOQ | No minimum order quantity. |
| Confirmed in stock | Normally 3–5 working days. |
| Not in stock | Typically 10–30 days depending on product complexity. |
Need a Different Carbide End Mill Route?
Need a Stock Carbide End Mill?
Browse the stock cutting-tool category for more standard tools with no MOQ requirement.
Need a Custom Ball Nose End Mill?
Use the custom route when the listed radius, reach, shank or geometry does not match your drawing.
Compare Other Carbide End Mills
Select another series when the workpiece or end geometry falls outside AU-2B limits.
Further Reading
General Machining
Review broader machining applications.
Wood Machining
Continue to the dedicated wood application area.
Die and Mold Machining
Review profile and cavity applications.
Cutting Tools Insights
Read selection and machining guidance.
Standards and Specifications
Review specification and tolerance references.
Manufacturing and Inspection
Review supply and inspection capabilities.
Frequently Asked Questions
What is the AU-2B ball nose end mill designed to machine?
AU-2B is rated very suitable for aluminum alloys, copper alloys, wood, plastic, acrylic and other soft materials. It is not the listed choice for steel, stainless steel, cast iron, titanium or heat-resistant alloys.
Which AU-2B 2 flute ball nose carbide end mill radius should I select?
Match the programmed ball radius and required reach to the listed R1.0–R6.0 models. Also check cutting diameter, shank diameter, cutting length and overall length before requesting a quotation.
Can I use the aluminum starting data for acrylic, plastic or wood?
Yes—as an initial reference. Start conservatively and adjust spindle speed, feed rate and engagement for the specific material, chip evacuation, tool overhang and machine setup. The published table is verified for aluminum and silicon-aluminum alloy, so final settings for acrylic, plastic or wood should be validated in the actual application.
Is AU-2B 2 flute ball nose carbide end mill coated?
No, for standard two-flute ball nose end mill is an uncoated with a 35° helix, as listed in the product facts table aboveStandard item without coating , but we can do coating as per customer requirements.
What are the MOQ and lead time?
There is no MOQ. Models confirmed in stock normally require 3–5 working days; items not in stock typically require 10–30 days depending on complexity.
Confirm the exact AU-2B model before ordering
Send the order product number, quantity, workpiece material, operation and delivery destination. TUNGVARA will confirm current stock and quote the specified item.
2 Flute Ball Nose End Mill for Aluminum | TUNGVARA
Machine aluminum contours with an AU-2B 2 flute ball nose end mill. Compare 9 sizes, R1–R6 starting data, stock and no-MOQ quote options.
Product SKU: TRA-AU-2B
Product Brand: TUNGVARA
Product Currency: USD
Product Price: 3
Price Valid Until: 2029-08-25
Product In-Stock: InStock
4.87
