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| How accurately ground is Silver Steel (aka drill rod)? |
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| Fergus OMore:
Ordinary bright mild steel can come out at 3 thous down in diameter whereas precision ground bar is as it says. However, the problem( for some) is machining silver steel/drill rod which may need something like Garia H or similar cutting fluid. My niggle about BMS is that my Myford collets risk being cracked with stuff undersize and I've gone to these ER things - of Far Eastern Promise :lol: Cheers N I ducked the three lobe issue- which is mentioned in GHT's books. Someone knew better in an earlier but similar question. |
| Pete W.:
Hi there, again, :offtopic: but I just have to share this: One division of a company I once worked for made relays - they sub-contracted actually making the contacts but free-issued the material. One day, the sub-contractor phoned the purchasing department and said 'I just thought I'd better confirm the arrival of the latest material', it was described on the paperwork as 'alloy XYZ978' or some similar cryptic identity. The purchasing department guy asked why the sub contactor was being so particular only to be told 'you do realise alloy XYZ978 is a silver /platinum alloy?'. The billet had been sent to the sub-contractor wrapped in newspaper and in a Jiffybag or something similar. As is too common in some parts of industry, where activity is thought to be a substitute for action, there ensued the slamming of many stable doors!!! :lol: :lol: :lol: The reason I post this here is that one consequence, happily not permanent, was that all 'silver steel' was to be kept under lock & key and only issued against three signatures. :ddb: :ddb: :ddb: |
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