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What is Broaching, Tool Grinding/Sharpening?

Definition Broaching 

For broaching, a high-quality, multi-tooth tool is used, whose cutting teeth are arranged one behind the other by one chip thickness. The feed motion is replaced by the staggered arrangement of the cutting teeth. The last teeth of the broaching tool have the profile desired on the workpiece. The geometry of the profile, its shape as well as the dimensions and tolerances of the profiles created during machining are predefined in the workpiece.

Only regular maintenance by resharpening and coating of the tool allows a constant reproducibility.

Broach grinding

The materials used place high demands on the machine and grinding wheels. Materials such as HSS and tungsten are used. The machines in conjunction with the grinding wheels must guarantee high profile accuracy, good dimensional stability and a high surface quality on the finished product.  The grinding machines must also meet requirements such as:

  • Geometric variety
  • Short set-up times due to high flexibility
  • Flexible technology software with measurement strategies that take into account the tool's operating behavior

The machines should be able to produce the geometrical accuracy and the required grinding quality both during new production and resharpening, because only these factors determine the process capability and economic efficiency over the entire service life of the broaching tool. Equipped with a swivel spindle, ring-shaped and twisted flutes can be sharpened. The machine should also be able to carry out any desired helix, twist angle, and relief grinding of the profiles. The chip chambers and the profile can be produced in both deep grinding and pendulum grinding. Burr-free grinding of the cutting edges has a further influence on the service life of the broaching tools. Burr formation is always an indication of surface structure thermal degradation of the cutting edges.

 

Precision Surfacing Solutions family of brands
Precision Surfacing Solutions Wheel BrandPSSLapmasterBarnesISOGElbabaReformKehrenMicronPeter WoltersPrecision Surfacing SolutionsPSSLapmasterBarnesISOGElbabaReformKehrenMicronPeter WoltersLapmaster WoltersPSSLapmasterBarnesISOGElbabaReformKehrenMicronPeter WoltersBarnes HoningPSSLapmasterBarnesISOGElbabaReformKehrenMicronPeter WoltersElb SchliffPSSLapmasterBarnesISOGElbabaReformKehrenMicronPeter WoltersISOGPSSLapmasterBarnesISOGElbabaReformKehrenMicronPeter Woltersaba GrindingPSSLapmasterBarnesISOGElbabaReformKehrenMicronPeter WoltersReformPSSLapmasterBarnesISOGElbabaReformKehrenMicronPeter WoltersKehrenPSSLapmasterBarnesISOGElbabaReformKehrenMicronPeter WoltersMicronPSSLapmasterBarnesISOGElbabaReformKehrenMicronPeter WoltersPeter WoltersPSSLapmasterBarnesISOGElbabaReformKehrenMicronPeter Wolters
  • PRECISION SURFACING SOLUTIONS

    PRECISION SURFACING SOLUTIONS supports manufacturers in a wide variety of industries in which precision grinding, lapping, polishing, deburring and advanced materials processing equipment is commonly used. They all need high-quality, high-precision, stable and well-engineered machines to manufacture high-quality work pieces.

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  • Lapmaster Wolters

    Founded in Chicago in 1948 as a manufacture of lapping and polishing machines for the mechanical seal market, Lapmaster has grown to a worldwide solution provider for more than 20 industries like precision optics and advanced materials.

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  • Barnes Honing

    Since 1907 Barnes has been considered a world leader in developing innovative honing and bore finishing technology and processes. The earliest Barnes honing machines were the first to make honing a practical and efficient means of finishing automotive cylinder bores in a production environment.

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  • ISOG

    Since May 2020, the brand ISOG belongs to the globally active Precision Surfacing Solutions Group. With the addition of ISOG to the already existing strong brands within the Group, PSS further strengthens its position as a leading supplier of high quality, best in class technologies in the market of surface quality enhancement solutions.

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  • ELB-Schliff

    ELB-Schliff Werkzeugmaschinen GmbH has been producing surface and profile grinding machines for over 60 years. The company was founded by Edmund Lang in the city of Babenhausen which led to the name "ELB-Schliff".

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  • aba Grinding

    The aba company was founded in 1898 under the name "Messwerkzeugfabrik Alig & Baumgärtel Aschaffenburg", hence the initials aba. Today, the aba Grinding Technologies is exclusively focused on the advancement and production of precision surface and profile grinding machines.

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  • REFORM

    REFORM Grinding Technology GmbH is specialized in the sales, development & production of grinding machines for various applications at its location in Fulda (Germany).

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  • KEHREN

    Founded in 1934, KEHREN is a well-established designer and builder of high-precision grinding machine tools and systems under the following categories: vertical grinding centers, vertical grinding centers with portal design, surface grinders with rotary tables and horizontal spindles, and surface grinders with dual rotary tables and vertical spindles.

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  • Micron

    Produced in Germany since 2009, MICRON machines are compact and dynamically rigid grinding machines especially designed for Creep Feed and Profile grinding. MICRON is an industry leader in grinding of Hydraulic components like stators, rotors and van pumps.

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  • Peter Wolters

    Founded in Germany in 1804 by Mr. Peter Wolters, Peter Wolters has been producing lapping, polishing and fine grinding equipment since 1936. In 2019 Precision Surfacing Solutions acquired the division Wafer plant and service business for photovoltaic and special materials of Meyer Burger. Further Information can be found at www.precision-surface.ch

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