Southbend SB1020 owner manual Tooth Set, Tooth Type

Page 23

For Machines Mfg. Since 8/09

O P E R A T I O N

Model SB1020

Tooth Set

Three common tooth sets are alternate, wavy, and raker (see Figure 17). Each removes material in a different manner to make the kerf in the workpiece.

Alternate

Wavy

Raker

Figure 17. Bandsaw blade tooth sets.

Alternate: An all-purpose arrangement with teeth bent 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 18. Each removes, gathers, and expels material differently.

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 18. 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-

Image 23
Contents Model SB1020 Manual Feedback UpdatesCustomer Service Scope of ManualTable of Contents Capabilities FeaturesAbout This Machine Identification IdentificationMachine Specifications Other Understanding Risks of Machinery Basic Machine SafetyF E T Y Additional Metal Bandsaw Safety Availability Power Supply RequirementsReparation Overview Things Youll NeedGrounding Requirements For 110V Connection PrewiredCircuit Information Circuit Requirements forExtension Cords UnpackingInventory Basic steps for removing rust preventative Cleaning & ProtectingBefore cleaning, gather the following Location Leveling Lifting & MovingLeveling & Mounting Machine Mounts Bolting to Concrete FloorsTo set up the machine Power ConnectionMachine Setup To test run your machine Inspections AdjustmentsTest Run OperationPERATIONOverview Description of Controls & Components Blade Width Blade SelectionBlade Terminology Blade LengthTooth Type Tooth SetTo select the correct blade pitch Blade Pitch TPITo change the blade on the bandsaw Blade ChangesMost common causes of avoidable blade breakage are Blade TensionBlade Breakage To tension the blade on the bandsawBlade Care Blade Care & Break-InDownfeed Rate Downfeed PressureChip Inspection Chart Blade Speed ChartCuts to the Left Angle CutsWork Stop Cuts to the RightWorkpiece Holding To adjust the blade guideBlade Guide Vise Quick ReleaseTo use the cutting fluid system Cutting FluidCutting Fluid System Coolant control valve Operation TipsSBL Gearhead T-Shirt SBL One Good Turn T-Shirt AccessoriesLubrication CleaningTo change the gearbox oil Machine StorageGearbox Troubleshooting Blade Selection section beginning on Troubleshooting Angle Stops To adjust the blade brushTo adjust the angle stops Blade BrushTo adjust the blade tension switch Limit SwitchesDownfeed Stop Bolt To adjust the headstock travel switchTo adjust the downfeed stop bolt To square the blade to the table Squaring BladeT E S Wiring Diagram Color KEY ElectricalL CTRICALSafety InstructionsTo convert the Model SB1020 to 220V ConversionElectrical G110 VAC ComponentsWiringWiring DiagramCoolant pump motor location Wiring Component LocationsCabinet & Base Description Cabinet & Base Parts ListHead Head Parts List Drive Wheel Machine Labels R R a N T Y Southbendlathe.com