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Recent content by cobb

How to calculate pitch diameter of external threads

Are you using thread wire's if so what is the thread size? Cobb Scott Cobb CSM Manufacturing, Inc csm-mfg.com
- cobb
- Post #5
- Apr 28, 2003
- Forum: Mechanical engineering general discussion
Stamping

Revision: the build up is not on cutter, the cutter will cut but the material is what has to be trimed, so the cutter is not cutting, any suggestions ? Thanks Cobb Scott Cobb CSM Manufacturing, Inc csm-mfg.com
- cobb
- Post #2
- Apr 28, 2003
- Forum: Mechanical engineering general discussion
Stamping

I have a stamping project, the material that will be stamped out is a combination of Kevlar/fiberglass that has a thickness of .158" my current problem is that when material is stamped the cutter has to be cleaned each time because of material sticking to it. Questions are: 1) What would...
- cobb
- Thread
- Apr 28, 2003
- Replies: 2
- Forum: Mechanical engineering general discussion
Torque applied to a 8-32 SCHS

Thanks for the info. Scott Cobb CSM Manufacturing, Inc csm-mfg.com
- cobb
- Post #4
- Apr 23, 2003
- Forum: Mechanical engineering general discussion
Torque applied to a 8-32 SCHS

Can anyone tell me how much torque can be applied to a 8-32 Stainless steel Socket cap head bolt that is 3-1/2" long ? Thanks Cobb Scott Cobb CSM Manufacturing, Inc csm-mfg.com
- cobb
- Thread
- Apr 22, 2003
- Replies: 3
- Forum: Mechanical engineering general discussion
Grade 8 nuts

Thanks TVP for your help. Scott Cobb CSM Manufacturing, Inc csm-mfg.com
- cobb
- Post #3
- Apr 3, 2003
- Forum: Mechanical engineering general discussion
Grade 8 nuts

Could someone tell me what is the rc of a grade 8 nut and bolt? Thanks Scott Scott Cobb CSM Manufacturing, Inc csm-mfg.com
- cobb
- Thread
- Apr 3, 2003
- Replies: 2
- Forum: Mechanical engineering general discussion
How much chucking pressure to apply ?

Is there a formula that you could use to determine how much chucking pressure to use on a 3- jaw hydraulic chuck to ensure that your work to be machined does not slip in the jaws during maching process. Normally its just a guess for us, but I would be interested in knowing if there is some math...
- cobb
- Thread
- Apr 1, 2003
- Replies: 0
- Forum: Mechanical engineering general discussion
G-force

1) Chuck diameter 10" with 3ea jaws each with weight of 3.0 lbs. 2) Chucking Pressure of 200 psi. 3) Chuck rotation at 2000 rpm. Question ? G-force on each Jaw ? I could be asking the wrong question here ? What im trying to find out, IS there a fomula to figure how much chucking...
- cobb
- Post #3
- Mar 31, 2003
- Forum: ANSI (standards) Code Issues
G-force

Can anyone give the caculation to figure G-Force ? Thanks Scott Scott Cobb CSM Manufacturing, Inc csm-mfg.com
- cobb
- Thread
- Mar 27, 2003
- Replies: 4
- Forum: ANSI (standards) Code Issues
INSPECTION DIMENSION Standard

What I should have said earlier is that all Dimensions need inspected but not all dimensions on all parts need 100% inspected. I am and have been in the contract job machine shop industry for 20 years and have seen more then my share of drawings come through with all kinds of symbols some from...
- cobb
- Post #7
- Mar 18, 2003
- Forum: ANSI (standards) Code Issues
Calibration Standards

Andy981 where is this 4:1 standered, I havent seen anything on this, I still ues the 10:1 Thanks Scott Cobb CSM Manufacturing, Inc csm-mfg.com
- cobb
- Post #3
- Mar 13, 2003
- Forum: ANSI (standards) Code Issues
INSPECTION DIMENSION Standard

Roby, I thought all dimensions on drawings needed inspection? Scott Cobb CSM Manufacturing, Inc csm-mfg.com
- cobb
- Post #2
- Mar 5, 2003
- Forum: ANSI (standards) Code Issues
Concentricity

GDTGUY thanks for your imput, I agree with what you said 100% I have not yet seen a pratical application to use concentricity, thats why I asked if anyone else has. Scott Cobb CSM Manufacturing, Inc csm-mfg.com
- cobb
- Post #6
- Mar 5, 2003
- Forum: ANSI (standards) Code Issues
Concentricity

saxon, thanks for the info. Maybe I should have asked my question more clearly, I understand what concentricity is and how to inspect it. Im looking for someone that has applied it to a component and can tell me what the component was and the function of this component upon final assembly. Thanks
- cobb
- Post #3
- Mar 5, 2003
- Forum: ANSI (standards) Code Issues

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