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HSS Burrs 1376

HSS burr Applications recommendations: 1. HSS burrs, thanks to their special tooth geometry and high production quality, partricularly suitable for deburring, chamfering, cast-iron fettling and processing aluminium. They can also be used cost-effectively with low-power machines in the low turning rate range.

2. HSS burrs should be used with low-rev machines, compared to hard-metal burrs. 3. They are not to available for applications where there are high rev rates.

4. The toughness of high-speed steel (HSS) gives greater stability to the tooth cutting.

1 teeth without chip deflector.

3 teeth with chip deflector.

5 teeth without chip deflector.

Observe safety recommendations:

Please observe the recommended turning speeds!

Material groups

Processing

Toothing

Cutting speed

course machining = greater material removal fine machining = lower material removal course machining = greater material removal fine machining = lower material removal course machining = greater material removal fine machining = lower material removal course machining = greater material removal fine machining = lower material removal course machining = greater material removal fine machining = lower material removal

uncured, un- tempered steel up to 1200 N/mm 2 (< 38 HRC)

3

60– 80 m/min

construction steels, carbon steels, tool steels, unalloyed steels, case-hardened steels, cast steel

Steel, steel casting

3 5

80–100 m/min 60– 80 m/min

1

60– 80 m/min

Stainless steel INOX

rust and acid- resistant steels

austenitic and ferritic stainless steels

1

80–100 m/min

alu alloys, brass, copper, zinc

1

NF metals soft NF metals

200–300 m/min

Cast iron with lamellar graphite EN-GJL (GG), with nodular graphite/ductile iron EN-GJS (GGS), white malleable EN-GJMVV (GTW), black malleable EN-GJMB (GTS)

3

60– 80 m/min

Cast iron gray cast iron, white cast iron

3 5

80–100 m/min 80–100 m/min

1

200–300 m/min

Synthetics, other materials

fibre-reinforced, thermoplastic and duro-plastic synthetics, hard rubber, wood

1

250–300 m/min

Example: HSS burrs, 1 tooth, ∅ 12 mm. Course machining of soft

Cutting speeds m/min

NF metals. Speed: 200–300 m/min. turning rate range: 5400–8000 min -1 .

60

80

100

200

250

300

Revolutions min -1

Burr ∅ mm

8 Abrasives

2,3 3,2

8400 11100 13900 27700 34600 41600

6000 4800 3900 3200 2800 2400 2000 1600 1400 1200

8000 10000 19900 24900 29900

4 5 6 7 8

6400 5100 4300 3700 3200 2600 2200 1900 1600

8000 16000 19900 23900 6400 12800 16000 19100 5400 10700 13300 16000

4600 4000 3200 2700 2300 2000

9100 11400 13700 8000 10000 12000

10 12 14 16

6400 5400 4600 4000

8000 6700 5700 5000

9600 8000 6900 6000

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