Machining | David Behar

Manufacturing

At the IUT of Cachan, I regularly practice production during TD and TP.

I regularly use 3-axis milling machines and 2-axis lathes, then in parallel 4-axis milling machines, 5-axis and 3-axis lathes.

Here are some of the things I can do:

Realization of manufacturing ranges and phase contracts

Therange of manufacturingprovides the technical information needed to manufacture the part. It is written after the CAD of the part.

During aSAE(learning and evaluation situation), I realized the manufacturing range and the phase contracts of a part called nuts.

I was able tolearnat :

Lephase contractallows you to detail the machining operations of a defined phase and to set all the machining parameters (cutting speed, depth of cut, DEC). It is carried out after the production range.

CAM(computer aided manufacturing)nuts on TopSolid

Programming the machining:

Create the stock on the part
Place the chuck in the machine
Choose the tools to put on the turret (according to the phase contract)
Create the desired machining step by inserting all the parameters found on the phase contract
Make a check to check that the machining is going well and that the part is machined as desired

Plantpart:

Deburr the part if necessary
Calculate the DECS (offset = distance between the workpiece carrier origin and the program origin)
Measure gauges tools
Mount the tools on the turret (positions found on the phase contract)
Insert tool gauges
Import the CAM file to the machine
Perform a machining simulation to see that the program is well configured
Mount the jaws (choose soft or hard jaws depending on the machining step)
Make a vacuum machining to make sure that everything is well configured (no risk of collisions, correct tool paths).
Mount the part in the chuck
Machine the part

Correction of gauges tools

TD done in progress

Measure machined parts to identify deviations from the average dimension
Determine the parameter(s) on which it is necessary to intervene to approach the average dimension
Calculate the correction on the designated parameter(s)

Make a part, following these steps: