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I was wondering if Carbide was worth the expense and trouble over high-speed steel for scrapers. Given you are not removing a lot of matierial with this method and it's more about precision than moving materail.
Sharpening carbide is harder than HSS.
I was wondering if Carbide was worth the expense and trouble over high-speed steel for scrapers. Given you are not removing a lot of matierial with this method and it's more about precision than moving materail.
Sharpening carbide is harder than HSS.
Sharpening carbide is harder than HSS.
can't seem to find hss inserts readily available except at anderson.
Is it possible to retrofit an HSS insert from say Anderson onto a Sandvik hand scraper?
I like the clamp style scraper of the Sandvik but can't seem to find hss inserts readily available except at anderson.
Matt ....lol... It's OK to disagree with me...lol...Hell I screw up just like everyone else does. Always 2 ways to skin a cat... Plus I have not worked with HSS blades of any sort in more then 40 + years accept demoing in classes for maybe 5 minutes. Times and technologies change. From when I was using them 40 years ago I spent almost as long sharpening them (or the old Anderson and home made ones) and every now and then had to heat them back up to cherry red...1650 F and quench them in oil as they seemed to get soft again. We used to shape them on a fine white wheel grinding stone and then lap them. Matt teach us please on these new HSS blades please. Forrest What say you? :=)
So I won an auction on a 620-20 sandvik scraper on Ebay! yay! i'm stoked and ideally i'd like to run carbide with it but want to wait and experiment with the good ole steel first. I generally like to climb up the stairs even if i know whats at the top of the flight to keep things interesting. Anywhoo. Will the steel below be hard enough for scraping? I intend to obviously cut them into insert sizes and simply attach to the scraper.
18 Inch Long x 3/4 Inch Wide x 3/16 Inch 81173585 - MSC
Found additional information on the type of steel:
AISI/SAE 415 Alloy Steel: Forging Facts & Characteristics | All Metals & Forge Group
Nope, pre-hardened (or actually hardened and tempered) 4142 is nowhere hard enough for scrapers. At around HRC30 its easy to cut with hss tools.
Not good even if you harden it.
Look for O1 type steel if you want to start with 100 years old tech, O1 must be most common tool steel in US.
Here's a number you can take to the bank: a carbide scraper edge lasts about 20 to 50 times longer than HSS..
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