I work for mechanical devices in bloomington il. they only have three production grinders. a holt and a lathe grinder- its old but reliable. they are a machine shop the grind work is only enough to employ me and a 1st shift guy. I run the vmc when there is no grind work. all the grinders are manually operated- no cnc.
I run a blanchard #18. The head grinds .008 out of flat- thats out of my hands to fix. I run parts that require them to be flat and parallel to .003. I spend most of my time setting up on a surface plate because the residual magnetism on the table pulls the part out of flat. I transfer the setup to the grinder. by the final grind one side is flat to .0015 and the other is out .008- I fix that on the last grind.
Do these machines monitor their working temperature, or the temperature of the cooling fluid? With the tolerances that you mentioned as rejected, I'd image it could be that difference between a cool morning and a sunny afternoon.
Yes, you can shim but the column of the machine will move back as heat increases and causes the segment chuck to cut out of parr. with the table. when you hit your spotter you done but then you realize it's out a parr. & out of flatness...too late...plus the weldment can move as it want's to when the mag is released if it's not normalized properly. Best to do 3 or 4 sides to be sure it's in tolorance
Neat facility. What do you do with your grinding swarf? We have blanchards at my work, and the steel scrappers wont take the swarf. They dont like the stone segment particles mixed in with the steel. .007 thousands over 84 inches! On a weldment yet! Uh, That couldof happened on the truck during shipping. That .0005 guy is crazy. Fire the operator? Ha ,Bet he was fired himself for taking 8 hours to do 1 hour worth of work making "perfect" baby buggy bumpers.
Naw, can't fire him cause of that. .0005 over 84" is almost mattison quality. and don't say you can do better. Blanchards arn't expected to perform any better than that. remember it's all about fast stock removal at a good price.
I work for mechanical devices in bloomington il. they only have three production grinders. a holt and a lathe grinder- its old but reliable. they are a machine shop the grind work is only enough to employ me and a 1st shift guy. I run the vmc when there is no grind work. all the grinders are manually operated- no cnc.
D100XX 3 weeks ago
What company do you work for and where is it?
dfte11a 3 weeks ago
This has been flagged as spam show
I run a blanchard #18. The head grinds .008 out of flat- thats out of my hands to fix. I run parts that require them to be flat and parallel to .003. I spend most of my time setting up on a surface plate because the residual magnetism on the table pulls the part out of flat. I transfer the setup to the grinder. by the final grind one side is flat to .0015 and the other is out .008- I fix that on the last grind.
D100XX 3 weeks ago
I would like to know more about these machines, but the information online seems limited.
D100XX 3 weeks ago
Comment removed
D100XX 3 weeks ago
@D100XX where do you work?
dfte11a 3 weeks ago
No, temp monitoring at all. Operator just needs to inspect it b4 shipping.
dfte11a 2 months ago
Do these machines monitor their working temperature, or the temperature of the cooling fluid? With the tolerances that you mentioned as rejected, I'd image it could be that difference between a cool morning and a sunny afternoon.
Garganzuul 2 months ago
I Working on Schaffer Grinding Co. on California!!!
salasjr21 3 months ago
Its funny how you can pick out the lack of precision in any object after doing this kind of work.
proaudiohd 4 months ago
HA HA, "Mountain Dew"
powershop1903 6 months ago
Yes, you can shim but the column of the machine will move back as heat increases and causes the segment chuck to cut out of parr. with the table. when you hit your spotter you done but then you realize it's out a parr. & out of flatness...too late...plus the weldment can move as it want's to when the mag is released if it's not normalized properly. Best to do 3 or 4 sides to be sure it's in tolorance
dfte11a 6 months ago
Why don't you use a feeler guage to determine how much you need to shim the part? You know the thickness of the shim I assume?...
Nihilist13 6 months ago
Could the .007 " be caused from load stress during the manufacturing process ?
Cool machine though , would like to run one sometime
cwferguson221 8 months ago
I admit I chuckled a little at the guy (seemingly) randomly hitting the machine with the mallet.
YoungJim409 11 months ago
We pay a local trash hauler to take the swarf to a landfill, I think they mix in some other scrap products as well.
dfte11a 1 year ago
Neat facility. What do you do with your grinding swarf? We have blanchards at my work, and the steel scrappers wont take the swarf. They dont like the stone segment particles mixed in with the steel. .007 thousands over 84 inches! On a weldment yet! Uh, That couldof happened on the truck during shipping. That .0005 guy is crazy. Fire the operator? Ha ,Bet he was fired himself for taking 8 hours to do 1 hour worth of work making "perfect" baby buggy bumpers.
joleenmorganjohn 1 year ago
i like how almost no one uses safety glasses around these grinders.
evilpoptartpbn 1 year ago
Naw, can't fire him cause of that. .0005 over 84" is almost mattison quality. and don't say you can do better. Blanchards arn't expected to perform any better than that. remember it's all about fast stock removal at a good price.
dfte11a 1 year ago
0.007" should fire that guy and hire me. I get upset when my parts are 0.0005 off
pardomtlca 1 year ago
Lucky Mark still has use of his eyes, what with him not wearing safety glasses. OSHA will have a field day with that.
snowybunting 1 year ago
@Therealslipkid sorry Don but I have to block you cause of all the silly remarks.
dfte11a 1 year ago
Hey, I run a grinder in the Detroit area too. Cool to see you guys on here.
needlesz 3 years ago
Dad, I'm proud of the interesting work that you do, but more proud of the way that you do it (Col 3:24-25).
trabajmo 3 years ago