BoilingLeadBath
Plastic
- Joined
- Aug 19, 2018
I'm looking to get a new set of tool holders for negative W-shaped inserts (i.e., WNMG), and am uncertain which clamping system I want - there's a large variety of systems to hold inserts down into the pocket available and the manufacturers (and from what I can see, extant forum threads) don't seem to say anything about why I'd want one rather than another.
I count at least (3) options. In Kennametal and ISCAR's terminology:
W style - "Traditional" pin and top-clamp
D style - Top clamps that have a nub that grabs the hole and pulls back (as they clamp down)
P style - "lever lock" setups that drag the insert down and back from be through-hole
(For reference, ISCAR has a nice graphic which seems to cover all the options I've seen yet (page 6 of their non-rotating inch catalog))
Now, I like the idea of the D-style setup over the W style - one less screw to turn (or strip the hex out of by using the wrong type of driver) - but I wonder what I'm giving up in holding ability.
I also think the P-style setup is pretty spiffy, but it seems like a design intended for tight spaces or chip control, trading off a lot of security in the process...
What do you guys think? Some fourth or fifth option that I missed?
Context: medium-sized MRO shop; we see some roughing and a lot of interrupted cutting in stainless weld overlay. It's a bonus if the toolholders are resistant to abuse by the (training-resistant) guys who we let run the lathes.
I count at least (3) options. In Kennametal and ISCAR's terminology:
W style - "Traditional" pin and top-clamp
D style - Top clamps that have a nub that grabs the hole and pulls back (as they clamp down)
P style - "lever lock" setups that drag the insert down and back from be through-hole
(For reference, ISCAR has a nice graphic which seems to cover all the options I've seen yet (page 6 of their non-rotating inch catalog))
Now, I like the idea of the D-style setup over the W style - one less screw to turn (or strip the hex out of by using the wrong type of driver) - but I wonder what I'm giving up in holding ability.
I also think the P-style setup is pretty spiffy, but it seems like a design intended for tight spaces or chip control, trading off a lot of security in the process...
What do you guys think? Some fourth or fifth option that I missed?
Context: medium-sized MRO shop; we see some roughing and a lot of interrupted cutting in stainless weld overlay. It's a bonus if the toolholders are resistant to abuse by the (training-resistant) guys who we let run the lathes.