External Spline Tools. Internal splines are produced by the same methods as internal gear production, such as shaping, form-milling, or power-skiving. Because splines are straight-toothed, they are also commonly broached for efficient, effective production. Internal Spline Tools. A milling cutter can take the exact conjugate form of the spline tooth space. By using this type of tool, a spline can be made one tooth space at a time, successively indexing from space to space.
The shaping process offers balance between flexibility and productivity. Additionally, external splines must be shaped if hob clearance sweepout is insufficient, common with unique part features such as a shoulder or change in diameter.
Teeth are generated by a hob cutting tool, and as the hob turns in synchronicity with the workpiece, the gashes of the hob successively cut flats along the tooth profile to productively generate several teeth simultaneously.
With major diameter, minor diameter, or side fit this non-involute tooth shape requires unique cutting tools for each spline type. To achieve desired straightness to the bottom of the cut in minor diameter bearing scenarios, a hob with clearance lugs is required. Clearance lugs promote parallelism by removing fillet interference, ensuring a straight side. Legacy designs are often full-fillet types where a completely full fillet is generated at the root of the spline.
Shoulder-type hobs and elongated-tooth hobs are used where a minimum fillet can be cut as small as 0. Spline profiles can take several shapes such as involute and parallel key profiles.
Though rarely spoken, our clients have made it crystal clear they prefer a supplier who will not become their competitor and steal hard earned work away. We agree. We have our confidence that your programs and products remain confidential and proprietary. Call us today at or fill out our contact form.
A Cold Forming Technology representative will contact you promptly. Pre-Rolling Fundamentals. Call us 8A-5P M-F. A machine breaks down and now their reputation is on the line! The staff at Cold Forming Technology wants you to know that our goal is: To help your business get more business To help you keep the business you have To help improve overall profitability We know that finding a competent supplier with extensive gear tool design and manufacturing capabilities is not easy, especially when it comes to ownership and a sense of urgency.
We have learned that companies want a partner-supplier who will: Have minimal start-up time Maintain production flow Get the parts done on time Avoid capital costs of new spline rolling machines At Cold Forming Technology we think you should expect that kind of resolve from your spline-rolling supplier. In addition to the cost and improved product advantage offered by Spline Rolling , is another important considerate—design flexibility.
Helical, Straight, Tapered Splines, and Serrations are some of the methods produced by the Cold Forming process in a variety of metals. Some of the designs call for the spline section to be rolled up to a shaft shoulder—there is no longer a need for a tool clearance recess. Fine pitch standard splines—formed by this method—deliver minimum torque, are easy to assemble, and permit savings in material.
Spline Rolling produced splines, may be heat-treated in the same manner as other similar parts. This is also a "chip-less" operation. Eliminating the production of chips removes a large headache for any tool crib managers or production line supervisors — dealing with the mess and hassle of post-machining chip removal. Metal chips can cause increased wear of tools and equipment, spark jams and blockages, and mean significant downtime for cleaning.
Your parts also become contaminated with chips and require a costly cleaning or washing process to remove them. At Colonial Tool, we can create custom spline tools for your tooling racks and rolling racks that are adapted to your products and cutting needs.
Contact us today to get more information or to request a free quote. Our industry-leading spline roller tools and cold forming tools will give you an advantage over traditional machining tools and let you increase your speed, efficiency and productivity, all while lowering your per-piece price. The right tooling can also help save money and run a more efficient operation on other fronts, including: Conserving capital expenditures on tooling Reducing tooling inventory and complexity Avoiding production downtime and unplanned maintenance Meeting production requirements Reducing the required number of personnel If your tool shop or production floor includes the machining of involute toothed forms, spline rolling tools from Colonial Tool can add significantly to your productivity and quality.
Spline Rolling Spline rolling is the fastest and most economical method of producing involute toothed forms.
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