Transcript Gear

Manufacturing Process
Gear & Shaft Manufacturing
Associate Professor Su-Jin Kim
Gear & Shaft
Manufacturing Processes
© 2011 Su-Jin Kim, GNU
School of Mechanical Engineering
Gyeongsang National University
Powertrain Module of Automobile
Powertrain Module
[모듈 공급업체]
현대모비스
한라공조
Engine
[생산업체]
현대모비스
모토닉, 지코
화신, S&T대우
한국프랜지
SJM, 현대EP
Gear & Shaft
Manufacturing Processes
© 2011 Su-Jin Kim, GNU
Transmission
[생산업체]
현대위아
S&T중공업
에스엘
경창산업
Index
1.
2.
3.
4.
5.
Introduction of Gear
Gear Machining
Shaft & Gear Forming
Bevel Cutting
Bevel Forging
Gear & Shaft
Manufacturing Processes
© 2011 Su-Jin Kim, GNU
Gear
•
•
•
•
Super, Helical
Bevel(Straight, Spiral, Hypoid)
Worm
Shaft & Spline
Gear & Shaft
Manufacturing Processes
© 2011 Su-Jin Kim, GNU
Gear Hob
• Pitch
• Gear Hob
© 2011 정영석, 세일공업
Gear & Shaft
http://ma.gnu.kr/vod/Machining/Gear_Hob_Sim.avi
Manufacturing Processes
Gear Hob Sim (20s)
http://www.youtube.com/watch?v=aCRt6yVhXf0
Bevel Gear Sim (3min)
© 2011
Su-Jin Kim, GNU
Hobbing
• A hob (cutter) is rotated one revolution to transfer each
tooth profile onto a rotating gear blank.
• Used very often for medium to high sizes of production
runs.
Gear & Shaft
Manufacturing Processes
http://www.youtube.com/watch?v=TDzhSaSZrSg Gleason P90 Gear Hobber, 3 min
© 2011 Su-Jin Kim, GNU
Gear Shaper
• The cutter engages the part on the forward stroke and
pulls away from the part on the return stroke.
Gear & Shaft
Manufacturing Processes
© 2011 Su-Jin Kim, GNU
Interference
http://www.youtube.com/watch?v=Dd9Ekl9DPZg (60s)
http://www.youtube.com/watch?v=CHQ1ZABx68o (140s)
Gear heat treatment
• Carburzing of Gears
• Induction Hardening of Gears
• Ferritic Nitrocarburizing of Gears
Gear & Shaft
Manufacturing
Processes
http://www.youtube.com/watch?v=iI7QEI2g0lk
© 2011 Su-Jin Kim, GNU
(90s)
Gear Grinding
• Gear is grinded after heat treat to give fine finish and
high accuracy.
Rough grinding
Gear & Shaft
Manufacturing Processes
CNC gear grinder
Finish grinding
http://www.youtube.com/watch?v=w9x7BjDhxSs Gleason 1500G Titan 10min
© 2011 Su-Jin Kim, GNU
Gear Machining Process of TIC
Ring Gear
공정 Flow
선삭 수입검사
치절(황삭/정삭)
열처리
내경정삭
선삭 수입검사
치절(황삭/정삭/정삭)
열처리
외경 완성 연마
Pinion Gear
공정 Flow
래핑/Test
공정 Flow
(Set화)
Gear & Shaft
Manufacturing Processes
래핑
© 2011 Su-Jin Kim, GNU
디버링 / 세척
TEST