[PSUBS-MAILIST] overlay welding

[hank pronk via Personal_Submersibles]

Thanks' Sean,I did look at plating, there is some interesting processes out there.   I am looking for an excuse to experiment with building the lathe.  Is there a softer SS then E316L  that is more machine friendly.   I am not worried about salt water, it would only be in contact briefly.Hank 

    On Monday, November 14, 2016 5:36 PM, Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
 

 E316L, with coating type appropriate to your machine.  Welding and machining have conflicting material requirements, with the Sulphur, Selenium or Lead additions that make steels easy to machine creating major headaches when welding. E316L will give you the corrosion resistance you're looking for, but will be difficult to machine because it work hardens so readily. If you can, stress relieve after welding (or in between machining attempts) to return the steel to its fully austenitic condition.As an alternative to weld deposition, you could look at plating processes to clad the exposed steel. Electroless Nickel?Sean


On November 14, 2016 5:17:56 PM MST, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
Hi All,I am back to work on Elementary 3000 and first on the list is to overlay weld my hatch seat with stainless steel and machine it down again.  I am building a vertical turret lathe instead of using my flange facing machine.  I am building the lathe as an experiment also for a future project.  My question is, what type of SS wire should I use.  There is a chance that the sub will see salt water.   I need to keep in mind that the material needs to be machining friendly.Hank
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