steve-l
Titanium
- Joined
- Mar 2, 2012
- Location
- Geilenkirchen, Germany
Great project !
Shows guts.
I´m not qualified to offer advice, but would appreciate pics..
Steel is the same strength and rigidity weather hardened or not. No ?
Does someone know if they actually need to be hardened ?
And why ?
Im purely asking out of curiosity.
Afaik with pressurised oil, its essentially a free running hydrostatic bearing, with no contact apart from start-up.
Any info is appreciated, as are any links.
You never fully harden a crankshaft.........it cracks and then breaks. Manufacturers will zone harden and do surface hardening at the journals by induction hardening, shot peening and nitriding. A crankshaft will be continually torsionally flexing. The choice of material and heat treat is critical. Material choice is driven by fatigue strength more than any other factor. The best advice I could deliver is "Don't re-invent the wheel!" The ICE has sustained continuous development for 120 years. Use what has been proven to work. Use 300m, 4140, 4340 or other equivalent CrMo alloys. Also, even these alloys come in different qualities of purity. Be careful and get certs when ordering your material.