Turning Tool for Degradation

anuragk91299

@peteroznewman

Hello Sir

I'm currently doing turning Operation on explicit Dynamics as part of my course project and I am facing a bit of difficulties

1. Instead of my workpiece, the tool is going through cutting operation ( workpiece is Cutting the tool)

2. And after getting the right solution from the processing previews, After a certain point of processing, "energy Error is too large" pops up... What should be done ?

P.S. I've given a displacement of 5mm for the tool per revolution.

So instead of giving a spindle.speed to the workpiece I'm using displacement in cylindrical co-ordinates to rotate it once a cycle to attain feed rate in mm/rev.

Please do help

Regards

Anurag Karulkar

anuragk91299

@peteroznewman Can you help me out please?

peteroznewman

@anuragk91299

1. Choose a material model that includes a failure criterion for the workpiece. Choose a material model for the tool that does not include a failure criterion. Under Analysis settings, Erosion Control, turn off Strain Limit and turn on Material Failure.
2. Fixing the materials might make this error go away.

5 mm per tool revolution sounds like a very large distance. How did you come up with that number?

anuragk91299

@peteroznewman the project is about optimizing cutting parameters so we are considering the values from the lathe operators manual for turning operation. and further going to use the values in Taguchi Method.

Can we continue this over mail since i have a few more doubts regarding the same.

peteroznewman

@anuragk91299

If you are cutting a screw thread with a 5 mm pitch, then 5 mm per revolution would be okay, but for turning a cylindrical surface, it sounds like a very large number.

I can address your doubts here, no need for email.