Blade hammering

      What is the purpose of hammering a blade for a circular mill? June 5, 2001

Question
I am setting an old Belsaw circular mill that has been in the family for many years. It has a 52" insert tooth blade. I came across used sawmill classifieds and found quite a few mills for sale that had re-hammered blades. I've been around this mill all my life and never remembered having this done. I do remember the blade running hot and wobbling, but after quenching and redressing/replacing the teeth, the saw would be just fine. Is re-hammering done to flatten a bent blade or to re-strengthen it? Should I have this done before setting the blade on the mill? Where can I get this done?

Forum Repsonses
The idea of hammering a blade is to get out any bumps or lumps that have developed and to create a little dish in the blade. With dish, when the saw begins to spin and the outside wants to get long, it can do so by removing some of the dish (also called tension) from the saw. The net effect is a stable running blade.

If we do not have the blade tuned up, we will either have a wobbling blade or we'll be lucky. Perhaps you have a thick blade, which would also help, but which wastes a lot of wood. What style tooth do you have? There are people all over the U.S. who could recondition your blade--look in a magazine, such as Southern Lumberman or Northern Logger. There is an excellent monthly saw column in Northern Logger.



One of the oldest, best shops for blade hammering is in Rice, Minnesota, called the Blacksmith Shop. They hammer thousands of blades there.

Would you like to add information to this article?
Interested in writing or submitting an article?
Have a question about this article?


Have you reviewed the related Knowledge Base areas below?
  • KnowledgeBase: Primary Processing

  • KnowledgeBase: Primary Processing: Sawmilling

  • KnowledgeBase: Solid Wood Machining

  • KnowledgeBase: Solid Wood Machining: Setup and Maintenance

  • KnowledgeBase: Solid Wood Machining: Tooling

  • KnowledgeBase: Knowledge Base


    Would you like to add information to this article? ... Click Here

    If you have a question regarding a Knowledge Base article, your best chance at uncovering an answer is to search the entire Knowledge Base for related articles or to post your question at the appropriate WOODWEB Forum. Before posting your message, be sure to
    review our Forum Guidelines.

    Questions entered in the Knowledge Base Article comment form will not generate responses! A list of WOODWEB Forums can be found at WOODWEB's Site Map.

    When you post your question at the Forum, be sure to include references to the Knowledge Base article that inspired your question. The more information you provide with your question, the better your chances are of receiving responses.

    Return to beginning of article.



    Refer a Friend || Read This Important Information || Site Map || Privacy Policy || Site User Agreement

    Letters, questions or comments? E-Mail us and let us know what you think. Be sure to review our Frequently Asked Questions page.

    Contact us to discuss advertising or to report problems with this site.

    To report a problem, send an e-mail to our Webmaster

    Copyright © 1996-2018 - WOODWEB ® Inc.
    All rights reserved. No part of this publication may be reproduced in any manner without permission of the Editor.
    Review WOODWEB's Copyright Policy.

    The editors, writers, and staff at WOODWEB try to promote safe practices. What is safe for one woodworker under certain conditions may not be safe for others in different circumstances. Readers should undertake the use of materials and methods discussed at WOODWEB after considerate evaluation, and at their own risk.

    WOODWEB, Inc.
    335 Bedell Road
    Montrose, PA 18801

    Contact WOODWEB











  • WOODWEB - the leading resource for professional woodworkers


      Home » Knowledge Base » Knowledge Base Article