I have searched using the internet for answers but I can't find it
there and neither can I find it in the information that my teacher has
given me.

A tool designer wants to make a new screw driver. What metal could he
employ as (a) the handle and (b) the shaft? Why?

On 13 May 2006 22:45:06 -0700, "Albert"
wrote:

I have searched using the internet for answers but I can't find it
there and neither can I find it in the information that my teacher has
given me.

A tool designer wants to make a new screw driver. What metal could he
employ as (a) the handle and (b) the shaft? Why?

chrome vanadium steel for the shaft because it can be rapidly heat
forged to shape and heat treated to a high strength.

injection moulded plastic for the handle because it can be formed into
intricate ergonomic shapes and can be produced in a wide range of eye
catching colours.

have you ever bought and used a screwdriver?
why is this difficult?
Stealth pilot

We made screwdrivers in 9th grade shop in 1965 that looked just like
commercial screwdrivers.
We pounded on the tool steel on the forge, then filed to shape, and then
heated it red hot and dunked in oil, and while still hot and cooling,
scratched off the scale with emery cloth to see the blue color and then
dunked in water.
We sawed off a piece of translucent yellow plastic handle material, cut
to shape and drilled the shaft hole on the lathe.
We heated up the metal and pushed it in the handle.
We dunked the finished product in acetone, which dissolved all the
imperfections of the plastic finish.

--
For choosing to fight, one gets the horrors or war, stress, and possibly
death.
For choosing not to fight, one gets subjugation, humiliation, and
possibly death.
Choose your fights carefully.

"Clark Magnuson" wrote in message
...
We made screwdrivers in 9th grade shop in 1965 that looked just like
commercial screwdrivers.
We pounded on the tool steel on the forge, then filed to shape, and then
heated it red hot and dunked in oil, and while still hot and cooling,
scratched off the scale with emery cloth to see the blue color and then
dunked in water.
We sawed off a piece of translucent yellow plastic handle material, cut to
shape and drilled the shaft hole on the lathe.
We heated up the metal and pushed it in the handle.
We dunked the finished product in acetone, which dissolved all the
imperfections of the plastic finish.

Snip

You did all that in school shop ???? My God Man, and no one died, got
maimed, got their feelings hurt, grew a second head from the fumes, or
needed a lawyer ??????

Maybe if we had classes like this still, we would not have questions like
the OP asked.

Jeff

"Clark Magnuson" wrote in message
...
We made screwdrivers in 9th grade shop in 1965 that looked just like
commercial screwdrivers.
We pounded on the tool steel on the forge, then filed to shape, and then
heated it red hot and dunked in oil, and while still hot and cooling,
scratched off the scale with emery cloth to see the blue color and then
dunked in water.
We sawed off a piece of translucent yellow plastic handle material, cut
to shape and drilled the shaft hole on the lathe.
We heated up the metal and pushed it in the handle.
We dunked the finished product in acetone, which dissolved all the
imperfections of the plastic finish.

--
For choosing to fight, one gets the horrors or war, stress, and possibly
death.
For choosing not to fight, one gets subjugation, humiliation, and
possibly death.
Choose your fights carefully.

A mere 22 years ago in gunsmith school (college) one of the first projects
was a set of quality screwdrivers. I made mine out of allen wrenches and
rosewood.
Tom

In shop class in 1985 or 86, we made a ballpeen hammer and center punch
set. Formed on the lathe, and then case hardened. Learned to use the 3
and 4 jaw chucks, knurl, drill, thread, polish, etc. I don't think they
teach kids stuff like that anymore. Just last night I dug out a Modern
Metalworking text book from 1965, alot of interesting info in there for
sure.

wrote:
In shop class in 1985 or 86, we made a ballpeen hammer and center punch
set. Formed on the lathe, and then case hardened. Learned to use the 3
and 4 jaw chucks, knurl, drill, thread, polish, etc. I don't think they
teach kids stuff like that anymore. Just last night I dug out a Modern
Metalworking text book from 1965, alot of interesting info in there for
sure.


Did those too, also sophomore year. Except ours were a center punch set
and welding hammer.

--
Jim

Just Jim wrote:
wrote:
In shop class in 1985 or 86, we made a ballpeen hammer and center punch
set. Formed on the lathe, and then case hardened. Learned to use the 3
and 4 jaw chucks, knurl, drill, thread, polish, etc. I don't think they
teach kids stuff like that anymore. Just last night I dug out a Modern
Metalworking text book from 1965, alot of interesting info in there for
sure.


Did those too, also sophomore year. Except ours were a center punch set
and welding hammer.

--
Jim


If you don't mind me asking, where did you go to school? I went to a
little school in an Illinois town called Leland.

Clark Magnuson wrote:
We made screwdrivers in 9th grade shop in 1965 that looked just like
commercial screwdrivers.
We pounded on the tool steel on the forge, then filed to shape, and then
heated it red hot and dunked in oil, and while still hot and cooling,
scratched off the scale with emery cloth to see the blue color and then
dunked in water.
We sawed off a piece of translucent yellow plastic handle material, cut
to shape and drilled the shaft hole on the lathe.
We heated up the metal and pushed it in the handle.
We dunked the finished product in acetone, which dissolved all the
imperfections of the plastic finish.


I did the same thing Sophomore year in high school, that was 2000-2001
School year. As far as I know my high school was one of only 2 or 3 in
the state (Illinois) that still had a metalworking program. That is
until the teacher retired last year. I have heard from current students
that the program has gone straight to hell since then. That shop
teacher worked there for 35 years and he was the program.

--
Jim
I owe my career in Tool & Die to that teacher...