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Thanks for the help. Aluminium 340-400 mpa tensile 3 mm thk. Cold piercing op. on an automotive piercing rig. See attached pdf. http://files.engineering.com/getfile.aspx?folder=279ab3fd-7dc6-4be9-94a4-6c71d1e0d5cf&file=DIE_PLATE_1.pdf

I need to specify a die for a piercing operation which needs to have a high tensile strength, probably around 1000 mpa if possible and yet still be sufficiently hard to give a reasonable life in terms of retaining its sharp edge. Anybody out there with any suggestions?

Anyone out there able to furnish me with the ultimate tensile and shear stress of AC600 aluminium used in modern car bodies? Thanks in anticipation.

Hello, can anyone give me the Ultimate tensile and shear stresses of the AC600 aluminium used in modern auto manufacture? Thanks in anticipation.

I wonder if anyone can help. I'm designing a stretch bender for producing a car door window glass channel. I can't get any info out of the end user on the steel to be used. Has anyone any idea of what steel is used in glass channels and what its yield stress is likely to be. It's already rolled...

I'm upgrading an expanding, rotating mandrel to take a doubled payload. As shown in the attachment, there are 2 sets of 3 equispaced ballscrews expanding rubber faced pads onto the inside of a drum, driven by 1:1 bevel gears. If the torque required to produce an axial force in each screw is T...

Thanks for your help fellas! Should I specify a depth for the induction hardening on these pinions? If so, what would be the resulting hardness in the core and would this be consistent with the bending fatigue limit I have stated? I do have the option of ordering slewing rings with a steel spec...

Yes, it is low speed. The 29t max pinion speed is 50 rpm and the 27t is 30 rpm.

I have 2 drive pinions which I need to harden. The material is 42CrMo4. One of them has 29 teeth at 4.5 module and a face width of 40mm meshing with an 88 tooth slewing ring. The other has 27 teeth at 4.5 module and 44mm face width meshing with a 68 tooth slewing ring. Both are 20 degree...

Could anyone provide me with basic properties such as tensile strength etc for 50MnT steel which is the material used for a gear I am about to use?

When importing IGES files into Inventor 8 and Mech Desktop 2004 for that matter, I'm having trouble with the PC crashing. I seem to be able to import some files up to about 10 Mb successfully whereas others of 6 Mb won't have it. The installation is a fresh reinstall of XP Pro less than 2 weeks...

I need to know the formula for matching a servo motor to a gearbox (planetary in this particular case) given the moments of inertia for both units. I suspect that the reduction ratio and possibly other factors will influence the outcome. Would appreciate help.

Increasingly I am seeing js8, js13 and other js tolerances in component catalogues. Can anyone tell me what standard these are part of, and direct me to that standard?