Quantcast

Cutting action

UKworkshop.co.uk

Help Support UKworkshop.co.uk:

Modernist

Established Member
Joined
21 Jan 2007
Messages
922
Reaction score
0
Location
Matlock UK
It is interesting how far ahead of the tip the shearing is taking place and that in one case a chip itself acts as the cutting edge. Thick shavings, different dynamics.
 

bugbear

Established Member
Joined
16 Jul 2004
Messages
13,074
Reaction score
0
Location
North Suffolk
Modernist":hhnm317r said:
It is interesting how far ahead of the tip the shearing is taking place and that in one case a chip itself acts as the cutting edge. Thick shavings, different dynamics.
I've been searching to find out what the actual scale of the shot (hence shaving thickness) is.

As yet, I don't know.

BugBear
 

Modernist

Established Member
Joined
21 Jan 2007
Messages
922
Reaction score
0
Location
Matlock UK
As with timber I feel the presence of a mouth would affect the operation. Chatter is very much an issue with metal machining and if you substitute poor finish for tearout then the analogy is complete.
 

dickm

Established Member
Joined
25 Oct 2004
Messages
4,504
Reaction score
0
Location
North of Aberdeen
Don't believe it's a SEM of metal at all - it's a side view of my snowplough in action last year :D
 

Cheshirechappie

Established Member
Joined
30 Jan 2012
Messages
4,747
Reaction score
27
Location
Cheshire
By golly that takes me back! When I was at University many years ago, we studied the causes of chatter in metal-turning, something that was exercising the reasearchers at the time. In later life, I learned that the practical man either stiffened up his tool-holder or workholding, or slowed the turning speed if chatter was a persistent problem.

Somewhere, I still have a textbook with a drawing showing exactly what that video shows. Nice to see it animated, all these years later. Thanks, BB!
 

GazPal

Established Member
Joined
30 Jul 2010
Messages
1,136
Reaction score
0
Location
North East England
In general the chatter problem stems from the combination of tool set/settings, feed rate and work holding. :)
 
Top