in ur another video u have said larger negative rake is provided for continious chips flow ...but in this video u are saying that positive rake angle is provided for continious chip flow ....not clear plese explain clearly sir ..I m waiting for ur answer
Brother, this will depend on material.if we work on ductile material.Then continuous chips will form in both negative or positive rack angle.but CHIP force on the tool will different. Thanks
in ceramic and carbide material negative rake is provided because ceramic and carbide are brittle material, brittle material is strong in compress and weaker in tension .with positive rake when chip flows a normal force will act on rake face and broke it and with negative rake this normal force will act as compression froce so no failure . but negative rake required high cutting velocity so a impact will act on tool due to high cutting velocity. thats why only insert of negative rake is user remaining part of tool is made of HSS which is ductile material and can wear impact without any failure .
Zero rake angle provide for cutting brass when cutting by hss tool
Zero back rake angle used for thread cutting operation and machining of brass work piece.
Makers of #LearnAndGrow can u make a video, explaining this.
Clear Video sir.
Please tell that high Rake angle means positive or negative rake angle?
nice explanation brother. thanks
Glad to help you
Thank you sir , I had confusion and didn't get the concept but aapki vedio dekh ke bohot ache se samaj aa gaya
Glad to help you
Bro will the contact length increase or decrease with increase in positive rake angle
Sir , (+ve) Or (-ve) rack angel material ke hisaab se kitna hona chahiye?
sir you are great teacher.....
Thank you for your motivated words
sir ji tusi great ho aap hi hamri hope ho
Thank you for your words
But negative rake angle is used to avoid built up edge but u said that in positive rake angle does not produces built up edge explain please
your work is great sir.
Thank you for your precious and motivated words
in ur another video u have said larger negative rake is provided for continious chips flow ...but in this video u are saying that positive rake angle is provided for continious chip flow ....not clear plese explain clearly sir ..I m waiting for ur answer
Brother, this will depend on material.if we work on ductile material.Then continuous chips will form in both negative or positive rack angle.but CHIP force on the tool will different.
Thanks
.thank u ..:-)
in ceramic and carbide material negative rake is provided because ceramic and carbide are brittle material, brittle material is strong in compress and weaker in tension .with positive rake when chip flows a normal force will act on rake face and broke it and with negative rake this normal force will act as compression froce so no failure . but negative rake required high cutting velocity so a impact will act on tool due to high cutting velocity. thats why only insert of negative rake is user remaining part of tool is made of HSS which is ductile material and can wear impact without any failure .
Thank you sir
Glad to help you
🙏🏻Jai Jagannth 🙏 sir
Bhot hard sir jiii.... 😍
positive rake angle kitna rakhate h
Sr please aap junior engineer k liye bhi video banao
Very good concept.
Thanks and glad to help you
Thanks you sir,
Glad to help you
chipping of cutting edge kya h sir tell me
Thank you sir ji...
THANK YOU FOR YOUR GREAT WORDS
With regards
LEARN AND GROW
thanku sir
Glad to help you
thnx
Glad to help you.
brilliant
THANK YOU SO MUCH
WITH REGARDS
LEARN AND GROW
Thank you very very much😊😘😘😘😘😘😘😘😘
Most welcome
bhai mza as gya nice
Thanks and glad to help you
Nice
Thanks
Nice sir
THANK YOU FOR YOUR WORDS
Thanks Sir
Most welcome
With regards
LEARN AND GROW
Thankyou so much sir 🙏🙏🙏
Glad to help you
Nice sir
Thanks