POSSIBLE CAUSES GUIDE. PROBLEMS. Heavy wear on tips & corners of teeth x x x x Tooth strippage x x x x x x Butt weld breakage x x x x Body breakage or cracks from gullets x x Body breakage or cracks from back edge x x x x Heavy wear and swagging of back edge x x x Broken band shows a twist in band length x x x x Chips welded to tooth tips x x x x Heavy wear on both sides of band x x Gullets loading up with material x x x x Fractured tooth tips x x x x x Rough cut x x x x x Inaccurate cut x x x x x x. As with any manufacturer, saw blade companies maintain strict production quality control standards in order to provide the best possible product to their customers. GUIDES. Guide arms are adjustable in order to expose the saw band to as little upward stress as possible. IMPROPERLY ADJUSTED GUIDE ARMS. BAND TRACKING. The term tracking refers to the act of positioning the blade on the bandsaw wheels so it is in proper relation to the table, work piece, backup bearings and saw guide inserts.
On a typical wood or metal cutting blade the hook or of point of the blade should be pointing down for a vertical blade bandsaw, or for a horizontal blade saw the hook of the teeth should be pointed such that they enter the workpiece first as the blade moves. During regular cutting on a well set up bandsaw the blade will move or bow backwards a bit as you press the workpiece into it. The side guides will assist in keeping the blade cutting straight, but they are not an iron lock on the blade forcing it to cut straight.
In some cases, the quality issues are unique to cutting pipe and tube, where there is an interrupted cut-that is, the blade contacts with the workpiece in two different places. Contact your saw blade supplier for assistance in determining the proper blade speed for the tube you’re cutting. Blade suppliers can provide charts for materials, blade speeds, and cutting rates, and they have access to the blade manufacturer’s technical department for answers to specific questions.
metal cutting band saw troubleshooting Related Question:
How tight should a metal bandsaw blade be?
The blade should deflect no more than 1/4 in. A good place to begin is to tension the blade until the meter reads proper tension for the next wider blade. For example, if you’re tensioning a 3/8-in.
Why is my band saw not cutting?
Band Saw: Why won’t my band saw cut straight? When the band saw cuts crooked, a dull blade, improper feeding, loose blade tension or not using a work piece guide could be the cause. Use the rip fence or miter gauge to guide the work piece uniformly through the cutting blade to make straight cuts.
Why does my metal bandsaw not cut straight?
Make sure the blade is running in the correct direction. On machines powered by three phases power so it is common to get the wiring reversed and have the blade running the wrong direction. On all vertical blade bandsaws the working portion of the blade should go down. This forces the workpiece down into the table.
Why does my bandsaw blade keep snapping?
Even the best blades can fail if there is something else wrong with your bandsaw, and even a small misalignment of bearings or guides can put a twist in the blade as it goes around. Resulting in tension being applied in all the wrong ways which will lead to early breakage.
Why are my bandsaw cuts wavy?
Re: Band saw Cutting Wavy Cuts. The clasic cause for wavy lumber is pushing a dull blade past it’s limits. Sharp don’t get it.
Which of the following should be worn when operating a metal cutting bandsaw?
Wear safety glasses when operating the metal cutting bandsaw. 2. Never wear loose clothing, or jewelry when operating the metal cutting bandsaw.
What causes bandsaw drift?
Drift is cause because the blade buckles under the load. You can see that by stretching a ribbon between 2 points and applying a pressure to one of the edges, it will turn sideway easily. A sharp blade and high blade speed will help a lot with that.
What causes sawmill blades to break?
Sharpening is needed to sharpen the cutting edge and remove numerous microcracks that have formed in blade gullets. During sawing, these microcracks grow, causing the blade to break.
How long should a bandsaw blade last?
On average your bandsaw blade should last 6 months to as long as a few years depending on what your cutting with it. Make sure to match your blade strength and quality to the project and material your cutting.
Why does my bandsaw spark?
Ceramics can cause sparks. Or, if your thrust bearing is too far past the blade, more toward the center of the bearing than the edge, then it won’t turn and you’ll get sparks too, and possibly wear a groove in the bearing.
How much tension should a bandsaw blade have?
For carbon steel toothed blades (cutting blades) this is typically 15,000 to 25,000 PSI. Slitting type blades typically are tensioned in the range of 12,000 to 20,000 PSI. In general bandsaw blades are never tensioned past 35,000 psi.