Flail mower blades

[37 chief]

I am replacing a few blades on flail mower. The new blades need to have a different bend. If I heat the blade at the bend, and make the correct
bend. will the blade lose it's hardness, or get brittle, at the bend area? The cutting edge never gets red. All the heat is in the bend area. I
heat the area, and make the bend then in the water. 45 seconds max. Any thoughts? Stan

 

[RogerinIowa]

Air cool, do not put in water.

 

[sandcastle1]

heating them is going to take the temper out of the steel.

 

[Steve@Advance]

I would not recommend heating or trying to bend them cold.

Are the correct blades not available?

 

[caterpillar guy]

If you can get the right blades I would. IF not just quench in oil for a few seconds. Oil will not cool it as fast so will not harden /temper them so much. They will smoke to beat the band when you pull them out of the oil and for a bit afterwards.

 

[Fritz Maurer]

Id run them first and see if there is any noticeable difference in the cut. Stagger them all over the place.
You might be going to a lot of trouble for nothing.

 

[JMOR]

(quoted from post at 09:24:13 03/18/23) Id run them first and see if there is any noticeable difference in the cut. Stagger them all over the place.
You might be going to a lot of trouble for nothing.

ow, my man, that is thinking!

 

[37 chief]

I need to give the blades more bend to keep them from hitting the frame. My mower is a mower that hasn't been made for years, the company is out of business. I just buy blades that are a close fit. I was cutting the blades shorter, but I found If I bend the blades a little they don't hit the frame. Stan

 

[Scott 730]

Is the brand of your old mower a secret?? If you post the brand you just may get a response from someone that has been down that road before. More information is better.................

 

[37 chief]

My mower is a Dandl. The blades for it are light duty, I am using a heaver after market balde..Stan