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hss-circular-saw-blades.gif (2214 bytes)

decostyleopticut.gif (4187 bytes)Metal slitting saw are manufactured at out modern and state of art plant situated at Pithampur Dist. Dhar MP India. A team of dedicated technocrats meticulously control each phase of the manufacturing process so that quality and precision are ensured all times.

 

 

DECOSTYLE SAWS have the following exclusive features.

  • Made from imported High Speed Steel .
  • Controlled heat treatment for uniform hardness and excellent metallurgy.
  • proper tooth geometry suiting concentricity, run out and flatness.
  • Ground form the solid teeth for improved saw life.

RANGE
DIAMETER 200 MM to 500 MM
THICKNESS 1MM to 5 MM

MATERIAL

For most of the general applications saws are made from HSS M-2(DMo5) grade. We also make saws from HSS M-35 (Co5) grade for critical cutting applications depending on the customer's requirements. M-2/DIN 1.3343 M-35/DIN 1.3243
C 0.87 0.92
CR 4.3 4.3
W 6.4 6.4
V 1.9 1.9
Mo 5.0 5.0
Co - 5.0




SPECIFICATION : IS 5031 : 1992-Metal Slitting Saws.

TOLERANCE
As per IS 5031 : 1992, tolerance for Axial and Radial ru-out are specified as under

D AXIAL RADIAL

OVER

UPTO AND RUN OUT RUN OUT
INCLUDING MAX (A) MAX (R)
- 40 0.10 0.10
40 100 0.16 0.10
100 200 0.25 0.16
200 301 0.40 0.16

Decostyle offers closer tolerance as under:

f. RANGE mm

AXIAL RUNOUT

RADIAL RUNOUT

FLATNESS

A

R

200 - 300 0.05 .15 .08
260 - 300 0.08 .20 .10
310 - 350 0.10 .25 .10
Above 350 f 0.15 .30 .15

TITANIUM NITRIDE COATING

The Tin coating of Saw blades is carried out in vacuum furnace where by the PVD process (physical vapor deposition) titanium is vaporized and reacts with nitrogen gas. This deposits on saw blades a gold coloured, very hard layers of TiN with thickens of 2-4 /um.
Decostyle Tin coated Saw blades offer clear advantages compared with non-surface treated bright circular saw blades.

Some of the advantages are

  • Higher Cutting Speeds and feeds(50-00%)
  • Longer service lives (50-200%)
  • Less friction resistance and less wear.
  • Lower tooling cost
  • Higher efficiency, in particular on automatic sawing machines.

RECOMMENDED TOOTH FORM

TYPE A Straight - For fine machining work, pitches ranging below 3 mm
TYPE AW ACME Straight - A Variant of above

TYPE B Curved teeth - most common tooth form used on cutting thin cross section tubes, pitches up to 4 mm

TYPE C - HZ Heller teeth - Alternately roughing and beveled teeth for cutting large sections.


SUGGESTED CUTTING PARAMETERS

In the Table below we suggest the most suitable cutting angles, cutting speed and feed for various materials.

Materials Tensile Cutting Or Clearance Cutting Feed / Tooth
Strenght Rake Angle(a) Angle(a) Speed (mm)
N/mm2 Degrees Degrees (n/min)
Low Carbon Steel 300 - 450 18 10 30 - 50 .03 - .06
upto st. 37
Medium Carbon Steel 450 - 600 15 8 25 - 40 .03 - .05
st. 44 to st. 52
High Carbon Steel  600 - 900 12 6 15 - 30 .02 - .04
st. 60 to st. 70
Alloy Steel 600 - 900 12 6 15 - 25 .02 - .03
High Speed Steel 800 - 950 12 6 10 - 20 .01 - .02
Stainless Steel 500 - 700 12 6 15 - 25 .01 - .03
Cast Iron 120 - 300 12 8 30 - 50 .04 - .05
Aluminium & Alloys 100 - 200 16 - 20 10 - 18 600 - 900 .05 - .09
Copper 240 - 360 16 - 20 10 - 15 200 - 300 .05 - .08
Bronze 240 - 300 12 8 200 - 300 .05 - .08
Brass 290 - 440 15-18 10 - 15 400 - 600 .04 - .08

 

PITCH SELECTION
Decostyle recommends saw pitch for different grades/cross section of materials as under

MILD MEDIUM HIGH HIGH ALLOY CAST ALUMINUM BRONZE BRASS
STEEL CARBON CARBON HSS/SS IRON COPPER
STEEL STEEL
TUBE / SECTION (mm)

PITCH T (mm)

.8 - 1..5 4 4 3 4 5 5 5
1.5 - 2.0 5 4 4 5 6 6 6
2.0 - 4.0 5 5 5 5 7 7 7
. 4 6 6 5 6 8 8 8
SOLID SECTION (mm)

PITCH T (mm)

10 -  20 5 5 5 5 5 6 6 8
20 - 40 8 6 6 6 6 6 8 8
10 10 10 8 8 8 12 10 12
60 - 90 12 12 10 11 11 16 13 14
90 - 120 14 14 12 14 14 18 15 17
120 - 150 16 16 14 16 16 20 17 19

PRECAUTIONS FOR BETTER LIFE

Ensure that the saw teeth are ground properly before mounting it on the arbor.
Ensure that the arbor does not have excessive play.
Saw tooth should not be loose on the arbor.
Clamping flanges is to be tightened properly.
Job should be clamped properly. Play in gibs should be minimum.
Avoid use of excessive high feed rate and rapid traverse.
Ensure the use of proper and sufficient coolant.

 

  

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