We do not manufacture the hobs in-house, we purchase them from various tool suppliers. It is not at all dangerous to manufacture such workpieces without coolant, as our machines are designed for dry machining.
Dear Amey, thank you for your question. For gears of this size, the teeth are usually deburred manually after the machining process. A defined chamfer geometry is usually not required here. Please let us know, if you have any further questions.
Thank you for your query. It is possible, but it is more commonly used with smaller gears and smaller modules. For producing bigger parts like in this video, it is only possible and more economical to do soft machining, for example gear hobbing, since for a forming process you would need extreme forces. We hope that this clarifies your question. Let us know, if you have any other questions.
Dear Amandeep Grewal, thank you very much for your question! It is difficult to make a general statement, since it depends on the quality requirements of the gear for your application. Please let us know, if you have any further questions.
Liebherr I asked you this because I have a mechanical company RMT TOOLS where we make heavy duty gear box used in steel industry. We have tos gear cutting machine. We first cut the gear the we send it for Hardning if gears then for gear grinding. We don’t have gear grinding machine. We get it done from other company they have hoffler 1250 xl gear grinder. Is there any machine which do cutting and grinding together.
@@amandeepgrewal8956 Liebherr gear hobbing machines are not only designed for high performance hobbing but also for high quality finish applications. In case the heat treatment distortions are too big also skive hobbing of hardened gears is possible. Of course highest gear quality demands are covered by Liebherr grinding machines. For further questions you can contact our sales department directly. You can find the sales partners for your region here: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
@@extrememachines7970 Dear Ashwani Chouhan, for business enquiries, you can find sales and service partners for your region under following link: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
Hi leibherr what is that fluid scale on the left of the screen?? On the right of the yellow stickers? I am currently trying to get a lc 182 running again and was just curious. Does it require filling as couldnt see anywhere to fill it up from ? Any help would be great
Dear starlet boy, thank you for your question. This is the level indicator for the milling carriage - A1 axis, worm gear. You can also get in touch with your local sales & service partner for more information, which you can find under following link: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
Thank you for your question! After the "gear hobbing" operation, the workpiece is heat-treated while still in a soft state. This can involve various techniques such as case hardening, nitriding or induction hardening. Due to the associated heat treatment distortion, the next step is the so-called hard finishing process, which involves gear grinding. Either profile grinding or gear grinding can be used depending on the desired quality required for the gearbox application. This ensures that the necessary quality is achieved or even exceeded.
Thank you for your enquiry. For business requests you can find sales and service partners for your region under following link: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
Dear Ehsan Rashedi, dry hobbing, without lubricants, is an established process for gear manufacturing since approximately 2003. It is possible with dedicated tools (carbide tools like SpeedCore) and special coatings and also special gear hobbing machines.
@@LiebherrGroup One thing is tool insert life, but you putting extra heat in the work piece. Which expands due to heat. So I'm guessing, this process compensates for this inaccuracy, since having a gear profile at an elevated temperature is actually a smaller profile at heated lubricated temperature. What difference does an elevated (ground) accuracy have compared to this dry hobbing? Reduced NVH, longer gear life?
@@bbence86 Thank you for your question. This process is dedicated for pre-grinding operations. The final accuracy will be reached with grinding. Your right, grinding improves everything, gear life and the NVH behavior.
Thank you for your enquiry. For business requests you can find sales and service partners for your region under following link: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
Dear Mr Mukherjee, thank you for your enquiry. Yes, in India our sales partner is Francis Klein & Co. Pvt. Ltd. E-Mail: sales@francisklein.in, Phone: +91 80 4117-2422. Let us know, if you have any other questions.
Dear Ganu Rode, for business enquiries, you can find sales partners for your region under following link: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
Dear gustavo amador quintero, dry hobbing, without lubricants, is an established process for gear manufacturing since approximately 2003. It is possible with dedicated tools (carbide tools like SpeedCore) and special coatings and also special gear hobbing machines.
Dear Haresh Panchal, for business enquiries, you can find sales and service partners for your region under following link: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
Thank you for your enquiry. For business requests you can find sales and service partners for your region under following link: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
Since approximately 2003 dry hobbing is an established process for gear manufacturing. It is possible with dedicated tools (carbide tools like SpeedCore) and special coatings and also special gear hobbing machines.
This is weirdly mesmerising. It's also the most German thing I've ever seen
Great video, thanks. Are the hob cutters indexable?
Yes the hob cutters are indexable.
Do you manufacture the drill bits in-house? What are they made of, and isn't it dangerous to do this operation without a coolant?
We do not manufacture the hobs in-house, we purchase them from various tool suppliers. It is not at all dangerous to manufacture such workpieces without coolant, as our machines are designed for dry machining.
Really amazing....
Is that helical gear
?? I knew Lubricants were important..
I enjoyed watching the video clip.^^ Can I use this video when I do my homework?
NO!
you can use it. Simply take the TH-cam link or share it. Then you'll be fine. Don't forget to give us the credits ;)
Thank you so much ^0^
@@LiebherrGroup Hi there, is this type of machine available in Mexico? Is there a dealer there? Please let me know. Thanks!
working here? a dream
기사공부중인사람 좋아요 눌럿
perfect
Super video...
Crazy
Thank You Liebherr, Could I please know how to chamfer the gear teeth using hobbing?
Dear Amey, thank you for your question. For gears of this size, the teeth are usually deburred manually after the machining process. A defined chamfer geometry is usually not required here. Please let us know, if you have any further questions.
@@LiebherrGroup Thank You for the response.I'll definitely let you know if I have any further questions.
Mantab
Super very nice
Very informative video sir.
Sir please explain why cant we press form gear??
Thank you for your query. It is possible, but it is more commonly used with smaller gears and smaller modules. For producing bigger parts like in this video, it is only possible and more economical to do soft machining, for example gear hobbing, since for a forming process you would need extreme forces. We hope that this clarifies your question. Let us know, if you have any other questions.
Do we need to grind the gears after cutting on this machine ? or is there is enough precision that we can use them directly in the gear box.
Dear Amandeep Grewal, thank you very much for your question! It is difficult to make a general statement, since it depends on the quality requirements of the gear for your application. Please let us know, if you have any further questions.
Liebherr I asked you this because I have a mechanical company RMT TOOLS where we make heavy duty gear box used in steel industry. We have tos gear cutting machine. We first cut the gear the we send it for Hardning if gears then for gear grinding. We don’t have gear grinding machine. We get it done from other company they have hoffler 1250 xl gear grinder. Is there any machine which do cutting and grinding together.
@@amandeepgrewal8956 Liebherr gear hobbing machines are not only designed for high performance hobbing but also for high quality finish applications. In case the heat treatment distortions are too big also skive hobbing of hardened gears is possible. Of course highest gear quality demands are covered by Liebherr grinding machines. For further questions you can contact our sales department directly. You can find the sales partners for your region here: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
Dear sir,Pls contact us for Gear hobber 9711662333 Ashwani Chouhan
@@extrememachines7970 Dear Ashwani Chouhan, for business enquiries, you can find sales and service partners for your region under following link: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
헬리컬기어 호브 좌각 에 상향절삭을하네요 그리고 범용기어가공기가아니라 수치제어기어가공기네요
칩이 아래로 빠지는게 이송방향이랑 날회전방향이 같은데 하향절삭인데
superbb
Hardik Tank uu8u
Hi leibherr what is that fluid scale on the left of the screen?? On the right of the yellow stickers? I am currently trying to get a lc 182 running again and was just curious. Does it require filling as couldnt see anywhere to fill it up from ? Any help would be great
Dear starlet boy, thank you for your question. This is the level indicator for the milling carriage - A1 axis, worm gear.
You can also get in touch with your local sales & service partner for more information, which you can find under following link: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
@@LiebherrGroup thankyou very much
After this process the gear goes through heat treatment then gets precision ground?
Thank you for your question!
After the "gear hobbing" operation, the workpiece is heat-treated while still in a soft state. This can involve various techniques such as case hardening, nitriding or induction hardening. Due to the associated heat treatment distortion, the next step is the so-called hard finishing process, which involves gear grinding. Either profile grinding or gear grinding can be used depending on the desired quality required for the gearbox application. This ensures that the necessary quality is achieved or even exceeded.
Good to know. Thank you for reaching out.
My favorite job is when I was 14 years old since I know 'Liebherr' today I am 24 years old.
I'm from India.
Hello brother will you please help me
Send me you fb account or any contact method
Send whatsup number
What is the price of cutter
Thank you for your enquiry. For business requests you can find sales and service partners for your region under following link:
www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
Kitne me padegi sir ji
hi,it doesn’t need lubricant??
Dear Ehsan Rashedi, dry hobbing, without lubricants, is an established process for gear manufacturing since approximately 2003. It is possible with dedicated tools (carbide tools like SpeedCore) and special coatings and also special gear hobbing machines.
Liebherr so nice,thanks a lot🙏🏻
@@LiebherrGroup One thing is tool insert life, but you putting extra heat in the work piece. Which expands due to heat. So I'm guessing, this process compensates for this inaccuracy, since having a gear profile at an elevated temperature is actually a smaller profile at heated lubricated temperature. What difference does an elevated (ground) accuracy have compared to this dry hobbing? Reduced NVH, longer gear life?
@@bbence86 Thank you for your question. This process is dedicated for pre-grinding operations. The final accuracy will be reached with grinding. Your right, grinding improves everything, gear life and the NVH behavior.
Leber,ki h galesion ki bhi bnakR dalo yaar
How long is the processing time?
About 2-3 years pr gear
the one in the video was done in 3 minutes
Here's how we re-sharpen those hob cutters with wire EDM
th-cam.com/video/waRB6W0Ypmk/w-d-xo.html
Sir how can we order gear hobbing machine, do you export here in the philippines, soon we will buy that kind and how much?
Thank you for your enquiry. For business requests you can find sales and service partners for your region under following link:
www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
Do you have any agent in India ??
Dear Mr Mukherjee, thank you for your enquiry. Yes, in India our sales partner is Francis Klein & Co. Pvt. Ltd. E-Mail: sales@francisklein.in, Phone: +91 80 4117-2422. Let us know, if you have any other questions.
सर गेअर कैसे निकाले
Dear Ganu Rode, for business enquiries, you can find sales partners for your region under following link: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
Muy bonito pero no ocupan algún tipo de lubricante o refrigerante
Dear gustavo amador quintero, dry hobbing, without lubricants, is an established process for gear manufacturing since approximately 2003. It is possible with dedicated tools (carbide tools like SpeedCore) and special coatings and also special gear hobbing machines.
@@LiebherrGroup muchas gracias
20,000 gear teeth need to be machined per month
seung-moon kim सोहन साह
seung-moon kim
9045969752
Virender Kumar
Want to cell this machine??
Dear Haresh Panchal, for business enquiries, you can find sales and service partners for your region under following link: www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
How to price this machine
Thank you for your enquiry. For business requests you can find sales and service partners for your region under following link:
www.liebherr.com/en/int/products/gear-technology-and-automation-systems/information-service/sales-service/sales-service-liam/sales-and-service-lvt.html?country=DE&productRangeGroup=VTA&culture=en-GB
I am operating this machine
dry????
Since approximately 2003 dry hobbing is an established process for gear manufacturing. It is possible with dedicated tools (carbide tools like SpeedCore) and special coatings and also special gear hobbing machines.
i fear whatever has this gear in it
I will get this for rent after success of business I will purchase
7-11 needs a gear making machine?
No lubricants? This may wear the hob.
Pls give me calculation
thank you for your request. For business enquiries, please send an email to info.lvt@liebherr.com.
@@LiebherrGroup give me calculation pls
@@mithunantony5801 Here: www.online-calculator.com/