September 20, 2022 at 6:35 am #2312Jake AbleParticipant
If you’re considering employing CNC machines to create your parts, this thought has probably entered your mind. Without a doubt, the accuracy of the machine is greatly influenced by the computerized nature of computer numeric control (CNC) machining. But the nearly limitless options you have for using cutting tools is what actually makes CNC machines so adaptable.September 20, 2022 at 6:55 am #2316Graham StevenParticipant
CNC Cutting Tool Types
Bit drills #1
Drill bits have a shaft with one or more flutes, which are helical grooves that run down the outside of the tool, and a conical cutting end.
Center, twist, and ejector drills are the three most common types of drill bits used in CNC machining, and each type serves a certain critical purpose.
To precisely drill small holes on the workpiece, center drill bits should be used. The holes can then be properly drilled with a twist drill. Ejector drills, on the other hand, are more effective at drilling deep holes.
End Mill #2
Drill bits and end mills are comparable, but end mills are far more adaptable. They often have up to eight pointed flutes on their ends and sides, which enable them to quickly remove heavy loads of material. If you want to cut straight into a material without needing a pre-drilled hole, an end mill should be your go-to tool (or spot).
There are several different types of end mills, with the roughing end mill type being the most popular. Like conventional end mills, roughing end mills feature up to eight flutes. In contrast, the serrated flutes in the roughing end mills allow you to remove more material than the ordinary end mills.
Face Mill #3
The starting material (or workpiece) used in CNC milling machines frequently needs to undergo some kind of preparation before you can carry out significant milling operations.
Before performing intricate cutting operations, you can create flat parts of the workpiece using specialized cutting equipment called face mills. This tool has a sturdy body and a variety of replaceable cutter inserts that may be switched out as needed.
For more difficult, intricate tasks, you might want to think about employing a “side and face cutter.” For instance, side and face cutters let you cut the sidewalls of the workpiece as well as a groove or slot in a workpiece.
Let’s say a workpiece needs a 1/2″ hole to be made. I assume you can now use a 1/2″ drill bit. Wrong! If you do this, your workpiece will likely end up with an enlarged hole once you finish drilling.
The best approach to make this hole is to start with a smaller drill bit, such 31/64″, and then enlarge it with a reamer to 1/2″. Reamers provide you the ability to increase the size of already-existing holes while maintaining precise dimensions and close tolerances.
Gear Cutters #5
Gear cutters are used to create gears for manufacturing businesses, as their name suggests. It can be used to create many different types of gears, such as spur, bevel, worm, screw, and helical gears.
Hollow Mill #6
Hollow mills are cylinder-shaped cutting tools that encircle and rotate around a cylindrical workpiece. They have three or more cutting edges. You may quickly and effectively produce a pre-thread diameter with this cutting tool. For finishing projections that must be in a specific position, you can also utilize them in drill press work.
Thread Mill #7
Thread mills are CNC cutting instruments used to create threads, as the name implies. Their function is comparable to that of taps. However, CNC machines equipped with thread mills can cut both internal and external threads, in contrast to taps, which can only cut internal threads.
If you want to cut through strong metals or asymmetrical pieces, you should choose thread mills.
Slab Mill #8
Flat surfaces are cut using slab mills, sometimes referred to as slab cutters or plain mills. These cutters are excellent for fast making wide and narrow cuts because they typically only have teeth on their periphery.
Fly Cutter #9
Fly cutters are single-point rotary tools that create a flawless surface finish while making deep or shallow cuts. Fly cutters are less expensive and provide a superior surface finish than the majority of face mills. Your go-to tool for plane surfacing operations ought to be this one.
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