Are those original shares cast? Iron or steel? In the old days, white cast iron or chilled iron was often the norm and it is one of the most difficult to weld successfully. One of my many (unrealized) dreams is to find an absolutely new plow share for the Cub as a model and then use one of today's steel shares as a base to weld onto and cut as necessary to create a usable substitute. Today's steel would probably wear longer than would the cast'
As many know, farmers in general are doing much less plowing with moldboard plows than was the norm 30 or 40 years ago. Large used plows sell at low prices in my area.
In the 1950s, I recall some vocational agriculture students ( I was never in that program) welding up worn plow shares or welding in new sections. Many of them were cast and the results were of limited success.
I once attempted to build up a worn plow moldboard with welding. It was steel, not cast. Warped it to the point of it being ruined. Weld material is molten when deposited and it shrinks as it cools- gets smaller. The effect is dramatic with significant weld thickness.
Last edited by Bus Driver on Sun Oct 14, 2012 7:20 pm, edited 1 time in total.