[TheForge] Re: Chop Saw Irritation

[Roger Olsen]

>

I would assume you are finding out the joys of A-36.  It is what you buy at
your generic steelyard but it is not mild steel.  It may be in spots but in
others it is tool steel.  God knows what all is in the vat and how well it has
gotten mixed.  We have all heard stories of something forged from A-36,
quenched and then just a leveling or closing tap on the anvil has resulted in a
break.  I have certainly hit hard spots in A-36 that are very noticeable in
forging, drilling, tapping, and sawing.  I believe it is just the nature of the
beast with A-36

Roger Olsen
_______________

>
> >
> > -----Original Message-----
> > From: RW [mailto:rw@itech.net]
> > Sent: Monday, January 28, 2002 9:17 AM
> > To: theforge@mailman.qth.net
> > Subject: [TheForge] Chop Saw Irritation
> >
> >
> > Has anyone noticed that while cutting through a piece of mild steel,
> > especially hot-finished, that the sparks are abundant and the wheel
> seems to
> > be moving right through the piece, then suddenly, the sparks
> diminish to a
> > small stream and it seems that one has encountered a "hard spot".
> Sometimes
> > extra pressure seems to get the wheel through this spot but
> sometimes
> > nothing helps and the wheel just stays there not moving.  The
> Instructions
> > say, let the wheel do the work.  Do not bear down on the metal.  But
> > frequently that does not work.  What is going on here?  What can be
> done to
> > resume a nice straight and easy cut?
> > RW
> >