Keys To Using CNC Broach Tools

Setting up a broach tool to cut in a lathe: Mounting the tool: We recommend mounting the tool in a boring bar sleeve. Split sleeves have the most accurate and solid connection when clamping on the shank of our tool. This is because they contact a full 360 degrees around the shank. We recommend using Rovi Products B style split sleeves Solid sleeves can work as well, however when solid sleeves become worn out they are not nearly as accurate or rigid. Slop in the boring bar sleeve could allow the tool to chatter and deflect off center. MTA Boring

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Finding Centerline for CNC Broaching Tool System

Correct Centerline Prevents Crashes During the Broaching Process The downloadable broach tool prints here:  Broach Tool Centerline For Programming   are for all eleven standard keyway slotting tool sizes and have the dimension from the centerline of our broach tool to the top of the keyway broach insert. If you do not take the time to find the center you may crash. As you could be taking to much of a cut for your radial depth. Also see the picture below: when the set screws press our keyway broach insert up against the right wall of the Broach tool pocket

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The Forgotten Keyway Broach Dimension

Understanding the Depth Radial Keyway Dimension The Forgotten Keyway Broach Dimension: A keyway, internal or external, has three dimensions. However, when going over applications with clients for Internal Keyways CNC Broach Tools needs clients to provide us with four dimensions. Not the drawing, just four dimensions. They are:     1) The Width of the keyway and the specific width tolerance needed   2) The Bore size that the tool and insert must fit into   3)  The Length of Stroke needed. Most refer to this as the Depth. Specifically it is the Axial Depth of the application.   4)

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Why Doesn’t One Broach Tool Holder Fit All?

Why Doesn’t One Broach Tool Fit All? At CNC Broach Tool we have tried to do our absolute best for providing stock standard off the shelf products. Such as our tool holders and inserts. Unfourtunatly diffrent applications call for diferent sized tools to fit a certain bore sizes. To achive an appropriate length of cut, and to get the depth of cut radialy in your keyway. You may need a 6″ length of cut and your eyes gravitate straight to our T58L, But your bore size is only 1.00. Our T58L wouldn’t fit a bore that small due to the

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Keyway Slotting Tool Broach Length

Keyway Slotting Tool Broach Length Frequently CNC Broach gets asked for a longer internal keyway length to broach than our standard slotting tool can reach. One-off special broach toolbars take much more time and money as opposed to modifying our off-the-shelf standard CNC Slotting Tool. Here are three solutions that have been tried and proven by many clients. The attached pictures were provided by clients that were happy with the result: Turn the “neck” of the tool back for a longer keyway stroke (see pic) Braise a couple of inches to the “butt” of the broach tool, turn both pieces

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Broach Tooling lathe and mill workpiece advice

Broach Tooling lathe and mill workpiece advice CNC Broach Tools recently had a client call us for advice about a internal keyway he was cutting on his mill. He had been using our keyway cutter for a couple of days straight and everything was working great but then without changing anything suddenly he started hearing a noise every time our broach tooling hit the part and his keyway had divets and a poor finish. Being an experienced user of our keyway cutters he checked everything we usually suggest and still was having problems. After several conversations with me, both of

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Holding your CNC Keyway Broach Tool

Holding your CNC Keyway Broach Tool The number one rule for holding our keyway broach tool is to never, ever modify our factory rear shank. It has a flat on center-line of the insert. If the set screws for your boring bar sleeve do not line up at 12 o’clock, then get a different holder. Also, use fresh set screws in your boring bar sleeve. The number two rule is to have a back-stop. Have the broach tool butt up against something so that it can not slide back. Whether you’re using a boring bar sleeve or the recommended ER

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Tips for broaching internal keyways

Tips for broaching internal keyways on CNC mills and lathes CNC Broaching info: Use water soluble coolant if you can.  For Stainless make sure to thicken your oil to 10%. Start cut with insert and tool face minimum 1.00” away from part being machined to allow space to accelerate to full cutting speed. . How our tool is held, makes the difference between whether it works or not. ER Collet sleeves are good. Holders with only one or two set-screws are NOT rigid enough. you want a holder that wraps completely around our shank and SQUEEZES down hard. BLIND KEYWAYS

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Broach tool on Lathe helps operator

Broach tool on Lathe helps operator discover turret and headstock is out Here are two examples where our tooling actually helped an operator discover how their machine was out: “The nice thing is I actually found a machine issue because of this tool. Discovered the turret was off in rotation by 0.075″, never ran a part. Caught it while I was checking to make sure the tool lined up with the relief hole in the part. Noticed by eye that the tool was not centered with the part. Thought it was the holder, but after about 4hrs of troubleshooting I

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