You can use these CNC bits for all the same things you’d use a solid carbide bit for, namely: This arrangement gives you the affordability of most steels and the strength of carbide. Carbide-tipped bits make their efficiency available at a lower price.Ĭarbide-tipped steel bits have a core that consists of cheaper steel, coated with a layer of carbide. High-quality carbide steel bits can be expensive. If you want CNC bits that will stay the course, you may want to consider paying more for a quality bit. It’s worth noting that not all carbide bits are equal. However, as with many hard materials, they can be brittle.Ĭarbide is a type of wear-resistant steel that works well for cutting materials like:ĭepending on the shape of the bit, solid carbide can be used for cutting, engraving, and milling among other things. Solid Carbide CNC bits are some of the harder bits on the market. Let’s take a closer look at the materials used to manufacture these bits. Not all bit types can cut every type of material, so you need to choose the right bit for your particular project. The market features a variety of types, each of which has different advantages and disadvantages. Speed rates are measured in revolutions per minute, and not all bits can maintain equal speeds.ĬNC bits don’t always consist of the same material. Speed Rate: How fast the spindle moves.If your chip load and feed rate don’t match up, you can easily damage your CNC bits. Feed rates are typically measured in inches or feet per minute. Feed Rate: How much lateral space your bit can process per minute.Smaller chip loads equate to more heat generation, while larger chip loads lead to the reverse. Chip Load: The chip load refers to the size of the material that the bit removes with every rotation.It’s worth noting that you can’t program the toolpath to go contrary to the machine’s axes. You get to program the toolpath into the software when you’re creating the design. Toolpath: The route the spindle follows to make cuts.If you work with CNC bits a lot, there are a couple of phrases you’ll hear a lot. How wide the flute part is at the bit’s surface.Įssential Terminology When Dealing with CNC Bits Web Thickness - How thick the bit is, i.e.Margin - How far the cutting edge (lip relief) extends beyond the web thickness.
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