What are cutters, hobs and broaching machines ??


The company Steelmans Broaches Pvt. Ltd. specializes in manufacturing a wide range of cutting tools and machinery, including gear cutters, hobs, and broaching machines. These tools and machines are essential for creating precise teeth, splines, and other intricate profiles on various workpieces.

Gear Cutters and Hobs ⚙️

Gear cutters and hobs are specialized cutting tools used to generate the teeth of gears, splines, and sprockets. While often used interchangeably, there are key distinctions and various types.

  • Gear Hobs: A hob is a cylindrical cutting tool with helical cutting teeth. It operates on a hobbing machine, where both the hob and the workpiece rotate simultaneously. The hob's teeth progressively remove material from the workpiece to create the desired profile. This process, known as hobbing, is one of the most versatile and efficient methods for producing external gears, splines, and other toothed profiles. Steelmans Broaches manufactures various types of hobs, including:

    • Involute gear hobs: Used for standard gears with an involute tooth profile.

    • Involute spline hobs: Used for cutting involute splines, which are often found in power transmission applications.

    • Worm wheel hobs: Specifically designed for cutting worm gears.

  • Gear Cutters: This is a broader term for tools that cut gear teeth. While hobs are a type of gear cutter, other examples include:

    • Shaper cutters: These tools are used in a gear shaper machine to produce both internal and external gears, as well as splines and ratchets. Steelmans offers different types, such as shank type, hub type, and disk type shaper cutters.

    • Bevel gear cutters: These are used for creating the teeth on bevel gears, which are used to change the direction of force in a machine. Steelmans provides a range of these, including segmented and spiral bevel gear cutters.

Broaching Machines and Tools 🛠️

Broaching is a highly efficient machining process that uses a multi-toothed cutting tool called a broach to remove material and create a specific shape. It's often used for finishing holes or creating complex profiles like keyways and splines, where other methods would be too slow or imprecise.

  • The Broaching Process: The broach tool has a series of progressively larger teeth. It is either pulled or pushed through a workpiece to remove layers of material with each tooth, creating the final, desired shape in a single pass. This makes broaching exceptionally fast and accurate for high-volume production.

  • Types of Broaching Machines: Steelmans Broaches manufactures a variety of broaching machines to suit different applications:

    • Vertical Broaching Machines: These are common for internal broaching, where the broach is pulled or pushed vertically through a workpiece.

    • Horizontal Broaching Machines: Used for both internal and surface broaching, especially for long workpieces.

    • Surface Broaching Machines: These machines are designed to broach flat or contoured external surfaces.

  • Types of Broaching Tools: The broach itself is a specialized tool tailored to the specific shape being created. Steelmans produces a wide array of broaches, including:

    • Spline broaches: Used to create internal splines for shafts and couplings.

    • Keyway broaches: Used for cutting keyways, which are slots that prevent a gear or pulley from rotating on a shaft.

    • Hexagon and Square broaches: Used to create internal hexagon and square holes.

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