Will brass work?? Brinnell hardness of 60
softer than aluminium at BHN of 90.
Otherwise scrap bins at metal merchants, find an offcut of some suitable bar stock and clean it up. Or even machine shops (parted off ends from thier lathe etc)
Will brass work?? Brinnell hardness of 60
softer than aluminium at BHN of 90.
Otherwise scrap bins at metal merchants, find an offcut of some suitable bar stock and clean it up. Or even machine shops (parted off ends from thier lathe etc)
-Mitch
'El Burro' 2012 Defender 90.
Jimy Tools do brass punch sets.
Otherwise as was said above, get aluminium or brass stock and make your own.
https://www.jimytools.com.au/product...ools/striking/
Cheers, Mick.
1974 S3 88 Holden 186.
1971 S2A 88
1971 S2A 109 6 cyl. tray back.
1964 S2A 88 "Starfire Four" engine!
1972 S3 88 x 2
1959 S2 88 ARN 111-014
1959 S2 88 ARN 111-556
1988 Perentie 110 FFR ARN 48-728 steering now KLR PAS!
REMLR 88
1969 BSA Bantam B175
I didn't realise that brass was softer. I think I have a brass punch at home already. Cheers.
Hey, I just said it all in the title!!!!!!
The hardness of both brass and aluminium varies considerably with alloy, heat treatment (aluminium) and work hardening (brass and aluminium).
Would start with a brass rod/punch and anneal it. Heat to red and quench. If too soft try an unannealed one.
The softest would be pure aluminium (think 1100 is the closest readily available).
Note that any rod is likely to be work hardened annealing brass is easy as above.
Aluminium is trickier but any aluminium can be annealed - heat to ~540C hold for 30 min and quench. Difficult to do without the gear try heating one end in a fire and cut off the melted bit;
quench and do the punch bit immeadiately as a lot of aluminium alloys will harden with time:
https://en.wikipedia.org/wiki/Precipitation_hardening
Note that heat and quench to anneal applies to most non ferrous metals, steel is different and would probably give a very hard and brittle result (martensite)
Just go to scrap metal place & buy a bit of alum round bar , you should be able to buy an off cut., or an alum fabrication shop should have off cuts I have a few of different sizes & lengths.
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