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  1. #1
    Join Date
    Nov 2011
    Location
    Melbourne
    Posts
    88

    Default Broken cast bracket

    Need some suggestions on the best way to fix this,

    Just got a this from Dale(member hear)
    Power Hacksaw
    An this bracket is broken.


    My thoughts were, but Iím happy to be advised otherwise, is too insert two steel pins either side of the bolt hole(2.5 /3mm ?)
    Then braze the joint as well.

    I imagine there is a little bit of force on the bracket being a guide runner.


    Would this work?
    Or should I try an make one from scratch?

    Cheers Matt.

  2. #2
    Join Date
    Nov 2017
    Location
    Geelong, Australia
    Age
    54
    Posts
    1,646

    Default

    Sounds reasonable to me, but the other method that jumps out at me would be to cut the end off the main part of the bracket and make up a flat piece from steel to replace the bit thatís broken off.
    Drill and tap the bracket for a couple of cap screws to bolt the two together.
    Not a good solution if you want to keep it looking perfectly original though.

    Steve

  3. #3
    Join Date
    Nov 2011
    Location
    Melbourne
    Posts
    88

    Default

    Steve thatís not a bad idea either.
    I do want to keep it looking original,but your suggestion could be made to work as well.

    Cheers Matt.

  4. #4
    Join Date
    Dec 2005
    Location
    South Australia
    Posts
    1,334

    Default

    Just Braze it, just about all the various old hacksaws have one or more parts brazed.

  5. #5
    Join Date
    Apr 2018
    Location
    Drouin Vic
    Posts
    352

    Default

    A replacement part could be cast using the original, glued up, as a pattern. Quite a few people on here do casting; being a small part it could be added to another pour. I'd offer but it sadly looks like being months before I get a chance to do any casting.

  6. #6
    Join Date
    Nov 2011
    Location
    Melbourne
    Posts
    88

    Default

    Quote Originally Posted by Pete O View Post
    A replacement part could be cast using the original, glued up, as a pattern. Quite a few people on here do casting; being a small part it could be added to another pour. I'd offer but it sadly looks like being months before I get a chance to do any casting.
    I never even thought of that Pete.Broken cast bracketBroken cast bracket

    Cheers Matt.

  7. #7
    Join Date
    Jun 2008
    Location
    Lindenow
    Age
    47
    Posts
    850

    Default

    That saw looks familiar, I sold that to Dale near enough to 10 years ago.....
    Didn't have a broken casting then Dale

    It could be powder spray welded. I have all the gear to do it, but it is quite expensive between the Oxy/Acet and the powder...
    If I can help in any way drop me a line.

    Matt
    Warning Disclaimer

  8. #8
    Join Date
    Apr 2012
    Location
    Healesville
    Posts
    1,766

    Default

    stainless rod, bzzzzzt, done.......

  9. #9
    Join Date
    Apr 2014
    Location
    Perth
    Posts
    118

    Default

    Quote Originally Posted by shedhappens View Post
    stainless rod, bzzzzzt, done.......
    shed
    does that mean you can weld cast iron with a stainless steel rod or not
    steve

  10. #10
    Join Date
    Feb 2013
    Location
    Laidley, SE Qld
    Posts
    959

    Default

    Its a channel with a boss, 2 threaded holes and a plain hole.

    If it were me I would mill a functionally similar item from a suitable piece of mild steel and never have to worry about the quality of the join.

  11. #11
    Join Date
    Nov 2011
    Location
    Melbourne
    Posts
    88

    Default

    Quote Originally Posted by bob ward View Post
    Its a channel with a boss, 2 threaded holes and a plain hole.

    If it were me I would mill a functionally similar item from a suitable piece of mild steel and never have to worry about the quality of the join.
    Except I do t have a mill,
    But I could do it by hand.

    Cheers Matt.

  12. #12
    Join Date
    Apr 2012
    Location
    Healesville
    Posts
    1,766

    Default

    Quote Originally Posted by shaper07 View Post
    shed
    does that mean you can weld cast iron with a stainless steel rod or not
    steve
    steve you can weld a few metals with a stainless rod, whether they stay welded is the question though....
    The pro's would probably say no......but I am not a pro welder so that means that I can weld cast iron with stainless rods and have done a number of times, mostly successfully, sometimes not, depends on the cast iron.
    I use 316L stainless rods, yes you can weld cast iron, steel to cast iron, high speed steel to mild steel, but you can only do this if you are not a Pro welder

  13. #13
    Join Date
    Apr 2014
    Location
    Perth
    Posts
    118

    Default

    Quote Originally Posted by shedhappens View Post
    steve you can weld a few metals with a stainless rod, whether they stay welded is the question though....
    The pro's would probably say no......but I am not a pro welder so that means that I can weld cast iron with stainless rods and have done a number of times, mostly successfully, sometimes not, depends on the cast iron.
    I use 316L stainless rods, yes you can weld cast iron, steel to cast iron, high speed steel to mild steel, but you can only do this if you are not a Pro welder
    okay thanks shed
    steve

  14. #14
    Join Date
    Sep 2010
    Location
    Lebrina
    Posts
    1,629

    Default

    Quote Originally Posted by shedhappens View Post
    steve you can weld a few metals with a stainless rod, whether they stay welded is the question though....
    The pro's would probably say no......but I am not a pro welder so that means that I can weld cast iron with stainless rods and have done a number of times, mostly successfully, sometimes not, depends on the cast iron.
    I use 316L stainless rods, yes you can weld cast iron, steel to cast iron, high speed steel to mild steel, but you can only do this if you are not a Pro welder
    Can I ask why you chose stainless electrodes for cast as they offer no advantage over a low hydrogen electrode and cost more? The dissimilar metal go to used to be Weldall electrodes which are a 312 grade stainless electrode and they specifically caution against using them on cast iron. Low Hydrogen electrodes will produce a good weld on cast iron that cannot be drilled or machined as a rule. If you need to drill or machine the deposit, then nickel electrodes are the choice. For best results one of the Eutectic offerings can not be beaten, but expect to pay upwards of $180/Kg for them. As with all cast iron welding, preheat and cooling is the key to success.
    Stainless electrodes have developed an undeserved reputation for welding everything and while they do have their place, there are often better and cheaper options.

  15. #15
    Join Date
    Apr 2012
    Location
    Healesville
    Posts
    1,766

    Default

    Quote Originally Posted by Karl Robbers View Post
    Can I ask why you chose stainless electrodes for cast as they offer no advantage over a low hydrogen electrode and cost more?
    G/day Karl, because I have them, have used them to successfully weld cast iron many times and have no need to run off and
    buy other rods to do a cast welding job. I used to use Castcraft rods but have not had them for years.

    Do you realize that you just proved my point that I made, twice......

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