HOME NEWS MECHANICS IN PILLS Cracks from gear grinding? Practical tips for managing control

Cracks from gear grinding? Practical tips for managing control

ottobre 05, 2021
Managing grinding cracks or better known overheating cracks is the order of the day for all of us gear manufacturers. To be honest it is also one of the most critical situations to be dealt with both during production and during the control phase. This is because each crack increases the possibility of the gear breaking and its ultimate fate of becoming a scrap.

What are cracks and how are they generated?

By cracks we mean all those breakages caused by the excessive effort to which the piece has been subjected and unfortunately it is difficult to remedy them. In the case of gears, breakages can be caused by different processes, but the most frequent is grinding.

As you surely know, every metal has its own breaking load, that is the limit point of resistance of a component to an external force exerted. Cracks appear as deformations and change of the internal tension of the gear. Often it is easy during the grinding phase that there are localized overheating due to some processing parameters not managed correctly, the tool not sufficiently cooled during work, or its not being sufficiently sharp.

Is it possible to avoid cracks?

As you may have understood, every component that presents this type of deformation is rejected, so it is necessary to protect the lot to avoid too many pieces that are unacceptable to the customer.

Here's how we prevent gear grinding cracks:

During the machine set-up phase:

  1. we check that all the processing parameters are set correctly;
  2. we check that the grinding wheel is properly sharpened;
  3. we check that the tool is refrigerated.
After that we produce a first piece that goes to testing which can do two types of checks:

  1. acid attack;
  2. magnetoscope is a non-destructive test that shows the presence of cracks through the attraction with a magnet of ferromagnetic particles dispersed on the component.
The problem with cracks is that very often they are invisible to the naked eye so they need to be checked in one of two ways.

At GSI we are equipped to prevent grinding burn cracks, guaranteeing our customers maximum safety.

ARCHIVES PAGE

  • 2024
  • 2023
  • 2022
  • 2021

    • BLOG CATEGORIES

  • Blog
  • MECHANICS IN PILLS
  • LAST NEWS FROM MECHANICS
    • GSI
    HistoryMission & VisionContacts
    Why GSI
    ProductsServicesMachinings
    BLOG
    BlogMECHANICS IN PILLSLAST NEWS FROM MECHANICS
    GSI Ingranaggi S.r.l.
    Via S. Quasimodo, 9 - 42023
    Cadelbosco Sopra (RE)

    Tel. +39 0522.917750 / 917365
    E-mail gsi@gsi-ingranaggi.it


    © 2024 GSI Ingranaggi S.r.l. - Via S. Quasimodo, 9 - 42023 Cadelbosco Sopra (RE) - P.Iva 00211250352 - NUM. REA RE-110195 - PEC: gsisrl@gigapec.it - gsi@gsi-ingranaggi.it
    Bando digitalizzazione | Indice | Privacy | General Selling Conditions |Informativa videosorveglianza | Cookie Policy | Cookie Setting

    This website uses cookies
    We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners who may combine it with other information that you’ve provided to them or that they’ve collected from your use of their services.
    Necessary
    Statistics
    More info
    Allow all Allow Selection Deny
    Cookie Settings
    Necessary
    Necessary cookies help make a website usable by enabling basic functions like page navigation and access to secure areas of the website. The website cannot function properly without these cookies.
    Statistics
    Statistic cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously.
    Allow all Allow Selection Deny