surface finish symbols explained

surface finish symbols explained
some of the topics in this video
Surface roughness number
Grade number
surface comparator
Surface Roughness machining symbols
Surface Roughness Parameters Ra, Ry Rz and RMS
What is a Profilometer?
profilometer surface roughness
profilometer surface finish
surface roughness tester
What is SURFACE ROUGHNESS?
What does SURFACE ROUGHNESS mean?
SURFACE ROUGHNESS meaning Surface finish and its importance.
Properties of Surface Finish- Surface Lay,
Roughness and Waviness.
Types of lay,
Comparison of roughness and waviness.
Properties of roughness,
roughness number and its other values,
different forms of representing surface roughness using symbols of various conventions.
Configuration of Surface roughness,
surface roughness values of different manufacturing processes.

[@UdayKumar-uh4gm]

your explanation is crystal clear ...thank you sir for uploading

[@andrewandres148]

Good presentation, good refresh for where i'll need it....

[@shopandmath]

thank you for your nice comment. And thank you for taking time to comment. It is much appreciated. Have a great day.
Ray

[@mkegadgets4380]

I wish you were around when I was an apprentice, it would’ve been a whole lot easier. Thanks for taking the time to explain, with great detail.

[@shopandmath]

thank you for your kind comment
Ray

[@josha9620]

Great video Ray excellent explanation!! Everyone in an apprenticeship should watch this video👍👍

[@rengarajug3537]

Very nice & helping the regular engineering activities

[@roland8449]

Great video. Thank you.

[@gaboscorporation]

amazing vid mate, really useful for someone studying engineering, thx.

[@raysfix]

I’m glad that you enjoyed the video
And thank you for taking the time to comment
Ray

[@James-fs4rn]

👍 very informative. Thanks

[@nunyabiznuss9869]

Thanks for the video 🙌🏻

[@shopandmath]

Thanks for the nice comment and thank you for taking time to comment. It is much appreciated.

[@shouldb.studying4670]

This video should be compulsory viewing for any materials scientist. ❤❤❤

[@raysfix]

Thank you for such a nice compliment and thank you for taking the time to comment
I made this video for my level three apprentices it basically contains everything that they will need to write their C of Q or red seal ministry test
Thank you again
Ray

[@_stef1458]

Great video!

[@raysfix]

Thank you for watching and also thank you for taking the time to comment I
much appreciate it
Ray

[@tonygombas491]

Thank you great video

[@shopandmath]

thank you
Ray

[@tj9382]

Very helpful, thanks.

[@shopandmath]

thank you for the nice comment
Ray

[@johnm840]

That is helpful to me.
what are your thoughts on measuring Lapped surface. More of a flatness spec vs roughness I think.
I just run an indicator across the part on a granite stone to check, sampling edges and middle and fishing around.
Surface finish is in the weeds for this I think when indicator is less than 1/10 of a thou or better
Probably a dumb question, had not thought about it.

[@shopandmath]

if its for flatness ?
CMM with a contactless prob
or try using Optical Flats (most high end inspection labs have them)
you could call your local university and ask if they have a Lasermike
It uses a helium-neon laser beam to scan the surfaces

[@johnm840]

@@shopandmath Optical flats are great. you see so much once you learn to read them.
Small deviations not something I need to do, but an interesting topic. Tom Lipton videos has me thinking beyond just 1/2 thou range. +/- .005 my typical range and I use those finish samples for reference at times. Thanks for the videos and topics you cover.

[@akosrupp232]

good video

[@raysfix]

Thank you for the nice comment and thank you for taking the time to comment much appreciated
Ray

[@payno6643]

Great video. I just scored a surftest 210. Im checking finish on everything. Im curious about the standard. It says 117. Im picturing a 125 finish, which is rough. What id consider a saw cut finish. This standard looks alot better than that. So what do i have wrong?

[@raysfix]

These pieces of equipment are extremely sensitive and can go out of calibration easy
If you know someone who has the same unit as you do a side-by-side comparison using the same test piece should give you the same results
If you have access to another master sample try using that to calibrate the unit
Ray

[@akashanand1329]

thanks sooo much .

[@raysfix]

Thank you for taking the time to comment it’s much appreciated
Thank you
Ray

[@godwincornelius201]

Thanks

[@aaronm4523]

So I have perpendicular symbol with a .02 after the symbol. are they call the machine marks to be perpendicular with in .02 of the surface?

[@shopandmath]

I need to see an image

[@andrewchamberlin1358]

Sampling length on my SJ-210 shows in terms of Lambda C .1 and the travel distance is nearly .500" Shouldn't it be Lambda C .5?

[@maghrebxxx]

Hello Sir, i was wondering is there a possibility to measure the parameter Rmr and Rsk on this device? it would be very helpfull thanks a lot!

[@raysfix]

It is possible to check the perimeter it needs to be a non-sledded style probe
It may require a holding fixture

[@danishmir6107]

Do you know where i can buy these Surface roughness metal plates ?

[@shopandmath]

at any machine shop supply
amazon has them
I got mine for almost nothing (used from buying old tools)

[@adamsblanchard836]

🤒