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User manual Southbend, model 14" METAL CUTTING BANDSAW SB1022

Manafacture: Southbend
File size: 5.13 mb
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Language of manual:en
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manual abstract


3.8" 1.4'' .................................... 5.8'' 3.8'' .................................... 11.4'' 1.2'' .................................... 21.2'' Figure 10. Blade width radii. -20 For Machines Mfg. Since 8/09 OPERATION Model SB1021/SB1022 Tooth Set Three common tooth sets are alternate, wavy, and raker (see Figure 11). Each removes material in a different manner to make the kerf in the workpiece. Alternate Wavy Raker Figure 11. Bandsaw blade tooth sets. Alternate: An all-purpose arrangement of bending the teeth evenly left and right of the blade. Generally used for milder metals. Wavy: Generally three or more teeth in a group that are bent one way, followed by a non-set tooth, and then a group bent the other way. Recommended for straight cuts in thin metals or thin-wall tubing. Raker: Three teeth in a recurring group—one bent left, next one bent right, and then a non- set tooth. The raker set is ideal for most contour cuts. Tooth Type The most common tooth types are described below and illustrated in Figure 12. Standard or Raker: Equally spaced teeth set at a "0" rake angle. Recommended for all purpose use. Standard (or Raker) Variable Pitch (VP) Variable Pitch Positive Rake Hook (or Claw) Skip (or Skip Tooth) Figure 12. Bandsaw blade tooth types. Variable Pitch (VP): Varying gullet depth and tooth spacing, a "0" rake angle, excellent chip removing capacity, and smooth cutting. Variable Pitch with Positive Rake: Varying gullet depth and tooth spacing, a positive rake angle, better chip formation, and aggressive cutting. Hook or Claw: Wide gullets (round or flat), equally spaced teeth, positive rake angle, and fast cut with good surface finish. Skip or Skip Tooth: Wide, flat gullets, a "0" rake angle, equally spaced teeth, and recommended for non-ferrous materials. -21 Model SB1021/SB1022 OPERATION For Machines Mfg. Since 8/09 Blade Pitch (TPI) The chart below is a basic starting point for choosing teeth per inch (TPI) for variable pitch blades and standard raker set bi-metal blades/ HSS blades. However, for exact specifications of bandsaw blades that are correct for your operation, contact the blade manufacturer. To select the correct blade pitch: 1. Measure the material thickness. This measurement is the length of cut taken from where the tooth enters the workpiece, sweeps through, and exits the workpiece. 2. Refer to the "Material Width/Diameter" row of the blade selection chart in Figure 13, and read across to find the workpiece thickness you need to cut. 3. Refer to the "Material Shapes" row and find the shape of the material to be cut. 4. In the applicable row, read across to the right and find the box where the row and column intersect. Listed in the box is the minimum TPI recommended for the variable tooth pitch blades. 5. The "Cutting Speed Rate Recommendation" section of the chart offers guidelines for various metals, given in feet per minute (FPM). Choose the speed closest to the number shown in the chart. CUTTING SPEED RATE RECOMMENDATION TOOTH SELECTION 50 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1921/2 31/2 75 100 150 200 250 300 350 400 2/3 2/3 1.4/2.5 1.5/.8 3/4 3/4 4/65/8 450mm inch Material Width/Diameter Material Shapes Teeth Per Inch (TPI) for Variable Pitch Blades Material Speed FPM (M/Min) Material Speed FPM (M/Min) Material Speed FPM (M/Min) Material Speed FPM (M/Min) Carbon Steel 196~354 (60) (108) Tool Steel 203 (62) Alloy Steel 111~321 (34) (98) Free Machining Stainless Steel 150~203 (46) (62) Angle Steel 180~220 (54) (67) High-Speed Tool Steel 75~118 (25) (36) Mold Steel 246 (75) Gray Cast Iron 108~225 (33) (75) Thin Tube 180~220 (54) (67) Cold-Work Tool Steel 95~213 (29) (65) Water Hardened Tool Steel 242 (75) Ductile Austenitic Cast Iron 65~85 (20) (26) Aluminum 220~534 Hot-Work 203 Stainless 85 Malleable 321 Alloy (67) (163) Tool Steel (62) Steel (26) Cast Iron (98) Copper Alloy 229~482 (70) (147) Oil~Hardened Tool Steel 203~213 (62) (65) CR Stainless Steel 85~203 (26) (62) Plastics 220 (67) Figure 13. General guidelines for blade selection and speed chart. -22 For Machines Mfg. Since 8/09 OPERATION Model SB1021/SB1022 Note: Excessive blade contact with the wheel Blade Changes flange during operation could lead to blade All saw blades are dangerous and may cause personal injury. To reduce the risk of being injured, wear leather gloves when handling saw blades. Always disconnect power to the machine when changing blades. Failure to do this may result in serious personal injury. ! To replace the blade: 1. DISCONNECT BANDSAW FROM POWER! 2. Open the upper and lower wheel doors, release tension on the blade, and move the blade guides away from the blade. 3. Put on heavy gloves, then slide the blade off the upper and lower wheels, around the blade post, and through the table slit. and wheel damage. 6. Re-tension the blade (refer to the following Blade Tensioning section). 7. Rotate the top wheel clockwise by hand several times to make sure the blade tracks evenly without wan...

Other models in this manual:
Power Screwdrivers and Drills - 14" METAL CUTTING BANDSAW SB1021 (5.13 mb)

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