Threading is an important aspect of the machining process. Threads are required to bolt interlocking components together. When making parts, especially replacement parts, it’s critical to ensure thread size and pitch precision. When it comes to threading milling cutters, you have a few alternatives, including full form and single pitch thread mills. Knowing which equipment is suitable for the job will save you time and help you produce a product that is as clean and accurate as possible.
Full Form Cutters
When thread milling, the first tool to consider is usually going to be a full form tool. These thread cutters are made to cut threads swiftly and efficiently. Several little triangular sharp teeth are positioned in rows on the end mill’s cutting surface. Instead of tracing the whole length of the threads, these instruments can quickly cut an entire threaded surface. Thread mills with whole forms cut in a single 360-degree pass. While cutting, the entire tool drops, and each “tooth” on the tool’s surface completes its cut where the tooth below it began. The resulting threads will be completely helical and ready to accept any suitably sized bolt that matches the pitch and size of the threads.
Internal and external threads of various sizes can be cut by a single form thread mill. Using full form tools has a few drawbacks, despite its speed and convenience. The fact that the teeth are spaced a certain distance apart is the major drawback when utilizing these thread mills. This means that each cutter can only make fixed-pitch threads. You’ll need to change tools or use an alternative threading option if you’re machining a single item with several thread pitches.
Single Pitch Tools
A single pitch thread mill is the name for the other threading cutter style. These end mills feature a longer shank that finishes in a single cutting surface that mimics a single “tooth” from a full form cutter, rather than a row of cutting teeth like a full form tool. Because of the reduced cutting area, a single pitch tool must trace the length of a threaded surface, cutting each row individually instead of all at once like . This method of producing threads will take a little longer, but there are some unique advantages to using these tools.
A single pitch thread mill can cut numerous thread pitches with a single tool, allowing each cutter to be significantly more versatile than their full-form equivalents. Single pitch milling cutters have a smaller cutting area, which means they have less friction during operation. This implies a single pitch tool may handle more delicate tasks like threading an overhanging component or working on a workpiece with thin walls. Although these tools take a little longer to cut, you may get a lot more done without having to swap tools if you’re working on a workpiece with a variety of thread pitches.
If you’re looking for thread mills for your shop, go no further than Online Carbide’s solid carbide thread mills. They have a large selection of milling cutters and drill bits at factory direct costs. Both full form and single pitch thread mills are professionally machined and TiAlN coated in the United States, and are available in their web store. You may contact a member of the Online Carbide team by sending an email to sales@onlinecarbide.com if you have any queries regarding their thread mills or any of the other tools they offer.
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