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Lang vs Talon Grip
Thanks for the feedback. I'm sold on the zero point - looks like time will tell on the stamping.- HMT8
- Post #5
- Forum: CNC Machining
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Lang vs Talon Grip
Thanks for sharing your experience with the Lang system. I was leaning the same way on the stamping unit. We don't usually have too many problems with OP1 stuff - it's always OP2 when you have to hold a tight tolerance to a feature from OP1. I'm a big fan of Schunk stuff, so I'll be sure to...- HMT8
- Post #3
- Forum: CNC Machining
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Lang vs Talon Grip
I'm getting ready to invest in some workholding for my shop. I've pretty much decided on the Lang zero point sytem for quick changeover of vises and fixtures, but I'm not sure about the whole Makro Grip concept. I see alot of plus and minus with it. We have traditionally used talon grip for...- HMT8
- Thread
- Replies: 4
- Forum: CNC Machining
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Grinding Shims
Comatose - interesting idea, but no data that would be predictive of the required sizes this time around.- HMT8
- Post #21
- Forum: Abrasive Machining
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Grinding Shims
Thinking about his a bit, we end up grinding each shim 4 times. (2) both sides for initial cleanup (1) semi finish (1) finish The initial cleanup grinding is done with a full chuck, but after that it's each one individually - for about 1000 shims. Yikes. We've done it before, and it took...- HMT8
- Post #16
- Forum: Abrasive Machining
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Grinding Shims
Current process is as follows: Grind shims flat (oversize 3 or 4 thou) Assemble fixture and measure Disassemble and grind as close as we feel comfortable. Assemble and measure - then usually do the same thing for a final grind. Measurements are made on a CMM - no way to easily measure all of...- HMT8
- Post #15
- Forum: Abrasive Machining
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Grinding Shims
Michiganbuck, thanks for the process details. There are some good ideas here that would help if we end up surface grinding them. We have a decent process for grinding them, holding the tolerance isn't difficult. it just takes too long to get across a shim with a surface grinder. How much...- HMT8
- Post #14
- Forum: Abrasive Machining
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Grinding Shims
The hardness isn't really an issue. I think stacking up shims would be more difficult than grinding to thickness. Thanks for the idea though- HMT8
- Post #13
- Forum: Abrasive Machining
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Grinding Shims
No The shims are to position parts on hydraulic clamping fixtures for some 4 spindle machining centers. The part datums (where the shimmed bits actually touch the part) are all less than .25 inches square so we don't have to worry about taper (within reason).- HMT8
- Post #12
- Forum: Abrasive Machining
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Grinding Shims
Is the vertical head surface grinder the way to go on this? I was kind of guessing.- HMT8
- Post #4
- Forum: Abrasive Machining
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Grinding Shims
That might be a really good idea CarbideBob! I have one that doesn't get used much and might be suitable.- HMT8
- Post #3
- Forum: Abrasive Machining
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Grinding Shims
Looking for some advice. I have a project that requires me to grind a bunch of 3/16 thick shims. The material is 4140 PHT and the sizes range from 4x4 to 1x1 ish. Each shim is ground at assembly and I need to be able to hold plus or minus .0002 inches on thickness. Since it is done at...- HMT8
- Thread
- Replies: 23
- Forum: Abrasive Machining
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Hole Offset for Insert Screw
Agree on using the correct screws. I have some on hand. Another option has presented itself - I might not have to make this tool. Thanks for the replies. -
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Hole Offset for Insert Screw
Hello Everyone, I've been here for years but this is my first post. Thanks to everyone for the knowledge that has been shared here. I'm making a special cutter for a mill that will use SCMT-32.52 inserts. The inserts have a .173 dia hole for an M4x.7 insert screw. I'm trying to decide how...