BAND SAW BLADE BREAK-IN PROCESS AND CUTTING CONDITIONS

MATERIAL
 
 
Construction steels
 
Case-hardening steels
 
 
Nitriding steels
Automatic steels
Temperes steels
 
 
Bearing steels
 
Spring steels
 
Unalloyed tool steels
 
Tools steels for hot
work en froid
 
 
High speed steels
 
 
 
 
Valve steels
 
High temperature steels
 
Heat-resistant steels
 
Special alloys
 
 
 
 
Stainless and rust
resistant steels
Tempered steels
 
 
Hardened steels
 
 
Steel casting
 
Cast iron
 
Alloy
Titanium
Cooper
Brass
 
 
Tin bronze
 
Bronze casting
 
Aluminium bronze*
 
 
 
Tin bronze lead
Pure aluminium
Aluminium ligth alloy
 
Aluminium cast alloy
 
 
 
Thermoplastic plastics
 
 
 
Synthetic plastics
+ pressed fabric
 
Aerated concrete*
Asbestos concrete*
 
DIN Speed
(mtrs./min.)		 Coolant
(%)
 
 
Carbono 
Bimetal
HM
  
 St 37/St 42 40-60 60-90 100-130 10
St 52/St 60   35-50 50-80 90-120 10
C 10/C 15  50-70 65-105 110-140 15
21 Ni Cr Mo 2  35-45 40-60 70-90 10
16 Mn Cr 5  35-45 40-70 80-100 10
34 Cr Al 6  - 20-45 45-60 5
9 S 20  50-70 60-120 100-160 15
C 35/C 45  40-60 40-90 90-120 5
34 Cr Ni Mo 6 35-45 40-70 70-90 5
 42 Cr Mo 4 35-45 40-70 70-90 5
100 Cr 6  25-35 30-75 70-90 3
100 Cr Mo 7 3  20-30 30-60 60-80 3
 65 Si 7 30-40 30-70 65-85 3
50 Cr V 4  30-40 30-70 65-85 3
C 125 W  30-40 30-65 65-80 3
C 80 W 1  30-40 35-70 70-85 3
125 Cr 1 30-40 30-65 65-80 3
X 210 Cr 12 20-30 15-40 40-50 Dry
X 155 Cr V Mo 12 1 20-30 15-40 40-50 Dry
90 Mn Cr V 8 20-30 20-45 45-55 3
S 6 - 5 - 2 20-30 25-50 50-60 3
S 3 - 3 - 2 20-30 30-55 55-65 3
S 2 - 10 - 1 - 8 20-30 20-45 45-60 3
S 18 - 0 - 1 20-30 20-45 45-60 3
S 10 - 4 - 3 - 10 20-30 20-45 45-60 3
X 45 Cr Si 93 - 25-55 50-60 5
X 45 Cr Ni W 18 9 - 20-50 50-60 5
X 12 Cr Co Ni 21 20 - 15-30 30-40 10
X 20 Cr Mo WV 12 1 - 25-40 40-50 10
X 15 Cr Ni Si 25 20 - 10-25 30-40 15
X 12 Ni Cr Si 36 16 - 10-25 30-40 15
Inconel 718 - 8-20 15-20 20
Hastelloy B - 10-25 18-23 12
Nimonic 901 - 8-20 15-20 20
Nimonic 263 - 10-22 17-22 15
Incoloy 840 - 11-23 18-23 15
X 5 Cr Ni 18 10 - 20-50 40-50 10
X 6Cr Ni MoTi 17 12 2 - 20-50 40-50 10
1000 -1200 N/mm2 - 20-35 35-50 5
1200 -1400 N/mm2 - 15-30 30-45 5
1400 -1600 N/mm2 - 10-25 25-35 5
50 HRC - - 15-20 5
55 HRC - - 10-15 5
60 HRC - - 8-12 5
GS - 38 30-40 40-70 70-100 3
GS - 60 25-35 35-60 60-85 3
GG - 30 30-40 30-60 60-80 Dry
GGG - 50 25-35 25-55 55-75 Dry
(Ni Cr Mo) - 15-40 40-50 Dry
Ti 1 - 15-45 40-60 10
Ke - Cu 60-80 60-200 - 10
Cu Zn 40 100-200 80-300 - 3
Cu Zn 40 Pb 2 100-200 80-300 - 3
Cu Zn 15 Si 4 100-200 80-300 - 3
Cu Sn 6 60-80 80-160 - 3
Cu Sn 8 50-70 80-160 - 3
Cu Sn 5 Zn Pb 50-70 60-150 - 3
Cu Sn 10 Zn 50-70 60-150 - 3
Cu Al 8 30-45 40-60 - 15
Cu Al 10 Fe 20-30 30-40 - 15
AMPCO 18 - 40-65 60-70 15
AMPCO 25 - 30-50 55-60 15
Cu Pb 20 SnS - 80-160 - 3
Al 99,8 80-400 80-800 - 25
Al Mg3 80-400 80-800 - 25
Al Mg 4,5 Mn 80-400 80-800 - 25
G - Al Si 6 Cu 4 80-400 80-800 - 25
G - Al Si 12 80-400 80-800 - 25
G -Al Mg3 80-400 80-800 - 25
G - Al Cu 4 Ti 80-400 80-800 - 25
PVC 100-400 100-400 - Dry
Teflón 100-400 100-400 - Dry
Hostalen 100-400 100-400 - Dry
Polystyrol 100-400 100-400 - Dry
Vulkanfiber 50-150 50-300 300-500 Dry
Resitex 50-150 50-300 300-500 Dry
Novotex 50-150 50-300 300-500 Dry
  300-400 400-500 600-700 Dry
  200-300 300-500 500-700 Dry
 
  The break-in process is recommended to ensure the maximum possible blade life. The band saw blade must be cutting at 50% of the standard feed rate, keeping the blade speed at 100% of the standard blade speed.

In this way, damages on the radius of the cutting edge caused by a too big chip thickness that cause micro breakages are avoided. For small pieces is recommended to cut approx. 300 cm2 , and in case of big pieces 15 min. are recommended.

After this, the feed rate must be increased accordingly until arrive to the standard feed rate.


    * For these materials is advisable to use Carbide tipped band saw blades