Jameshb
Plastic
- Joined
- Mar 25, 2019
Hi I'm having issues with forming this 10mm Hexagon hole. I had my cham drill go on me just fresh out the vend oops! This had ran around 150 parts before the insert went on the cham drill. The machining method follows with Spot drill, carbide 10mm cham drill. Bored to 10.25 mm diameter with a 6mm indexable boring bar TCMT 0.4 Insert rad, then rotary broached goes in and forms the shape. Then we go in with a second carbide insert drill to get rid of the horrible burr or petals as we call it in our machine shop then back down with the boring bar to remove the entry marks when the broaching tool is first leading into the hole.
We have switched to a 10mm HSS drill to remove the burr the broach pushes over in hope this should last longer and hopefully not wipe any tools out. After this incident I set up the tool load monitors on my roughing tools and drills.
I've thought about using and slot drill to help get rid of this material at the bottom of the hole, has anyone else got any suggestions or tips I'm new to broaching and new to the machining world and learned a lot of things on my journey so far and always looking to improve. The machine I'm running is a doosan TT1800SY and the tools are running with through coolant except the broach.
We have switched to a 10mm HSS drill to remove the burr the broach pushes over in hope this should last longer and hopefully not wipe any tools out. After this incident I set up the tool load monitors on my roughing tools and drills.
I've thought about using and slot drill to help get rid of this material at the bottom of the hole, has anyone else got any suggestions or tips I'm new to broaching and new to the machining world and learned a lot of things on my journey so far and always looking to improve. The machine I'm running is a doosan TT1800SY and the tools are running with through coolant except the broach.