pick sanding

by **bpc293** » 3 Sep 2006 20:19

I'm curios at what temperature does metal start to change it property's. i no theres so many different types of metal so lets say wiper inserts or a cheap hacksaw blade.

i was sanding one of my duplicate southord picks and i could feel the metal stiffen up. i kinda like it but i no if it gets to hot it softens. at what temp. does it start to stiffen up. i no more about annealing and tempering
then whats happening at these lower temperatures like when your sanding and polishing.

stainless steel is not magnetic or will not attract a magnet correct?
I'm asking because my magnet is sticking to picks that are suppose to be stainless.

by **Shrub** » 3 Sep 2006 20:23

All this has recently been answered,

Stainless nowadays on such uninportant things will be magnetic to an extent,

What you are doing with your sanding is work hardening the surface,

Do you really need tempretures? you will be fine hand polishing but once you get rotary tools on it like a dremel with a polishing bit and you will change the material to some extent,

by **bpc293** » 3 Sep 2006 20:40

no i dont need temps. i no most of this has been coverd. is there one thread or sticky that i missed that covers it all with temperatures and everything.

so there's no way sanding by hand should mess my pick up. my hand is pretty quick.

thanks

by **Shrub** » 3 Sep 2006 20:50

Im sorry i didnt mean to sound so short,

Well slow your hand down if your worried,

A normal snading (why you want to sand them anyway im not sure) will be just fine,

As i say though picks are for useing not looking at :wink:

by **bpc293** » 3 Sep 2006 21:16

some time i wont to take a little more off and i dont want to use the file. i always mess up when I'm almost done with the pick because i want to take a little more off or straighten it out a little and then i make the weak spot. so before its at where i wont it I'll sand the rest of the way.

i was thinking about it today i never really post pic's of my stuff because there not shiny and straight. that lock boards or that box i made my auto bumper or my bump keys. the picks i always make , my cutaways. I'm going to get it all together and put up some pictures.

does everyone else's page flip or scroll to the bottom of the page real fast in the middle of typing. i have to stop and scroll back up. its like this little glitch its starting to bug me. does this happen to anyone else on here.

by **Shrub** » 3 Sep 2006 21:32

Yes it does but only when i hit my touch pad by mistake and the pointer is on the edge of the text window,

by **bpc293** » 3 Sep 2006 21:34

yea i do have a touch pad. its turnd off i cant stand it. but my hand is still on it.

thanks

by **darrel.h** » 3 Sep 2006 21:39

Well, tempered steel will start changing properties at about 500-700 degrees centigrade. Hardened steel will start changing at about 400 degrees centigrade and up depending on the type of metal. Tempered stainless will change anywhere from 400 degrees and up. Hope that helps.

by **bpc293** » 3 Sep 2006 22:55

yes it does. theres no way im sanding fast enough to make it that hot.

by **cL4y** » 4 Sep 2006 6:56

about 20 mins ago,i just made a wiper-blade-wrench using the blades i got from Pick N' Payless and made a twist-flex in it by heating it on my stove,and man,it went orange,very hot,and i bent it,heated it up again and then dunked it in water.

by **bpc293** » 4 Sep 2006 11:02

are you suppose to let it cool and reheat it and then dunk it. i thought you kinda bent it over the fire and then dunked it. i know if your having problems with your stuff being brittle you can let it cool for like 20 seconds or so and then quench. this link has some info on tempering.
so how did it turn out.

http://www.knifenetwork.com/forum/showthread.php?t=7255

by **Unholy Ham** » 4 Sep 2006 11:08

I was about to say.. Wouldn't the "hot-cool-hot" treatment weaken the pick?

Not a good idea.

by **bpc293** » 4 Sep 2006 11:37

know what varjeal wrote a good diy one. you should look for it. i should look for it. i should read it agian my self. i got to take off if you guys dont find it i'll look later and post it.

bpc

by **Shrub** » 4 Sep 2006 11:41

There is no need at all in heating your wiper inserts to bend them, you can twist them cold with no issue at all,

I dont know what it is over there but anyone wanting to bend metal thinks they have to get it red hot first over here its the opposite most peopel would just try bendign it with no heat,

I can guarentee you that you do not need to heat wiper inserts to bend or twist them,

by **GSA_DENIED** » 4 Sep 2006 15:32

It is true even though you "don't have to" heat treat the wiper to get it to work. It does help to strengthen the blade since it is easily flexed without heat, and over the course of tensioning a few locks, especially with newbies(No Offense) they have been bent back and forth a few times and the user tends to re-straighten them in which weakens them at their bends. Therefore, heat treating is a good idea with any kind of metal tool intended for multiple hours of use. I don't know about everyone else but, when I have made a tool that works really good I want it to last for a while before having to make another. Therefore I believe Heat Treating is a good idea. The only thing that will happen is you might overheat and brittle the metal, if so, do it again. you can't always be perfect the first go-round.

pick sanding

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