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| 1 | Laser-induced oxidation assisted micro milling of high aspect ratio microgroove on WC-Co cemented carbide显示文摘Severe tool wear and poor surface quality are the main problems during micro machining of cemented carbide.In this work,an innovative hybrid process of laser-induced oxidation assisted micro milling(LOMM)was proposed to solve the problems.A nanosecond laser was utilized to induce oxidation of the WC-20%Co material,producing loose oxide which was easy to remove.The micro machinability of the material was improved by laser-induced oxidation.The oxidation mechanisms of cemented carbide were studied.A microgroove with a depth of 2.5 mm and aspect ratio of 5 was fabricated successfully.The milling force,surface quality and tool wear mechanisms were investigated.For comparison,a microgroove was also fabricated with conventional micro milling(COMM)using identical milling parameters.Results revealed that in LOMM the milling force and tool wear rate were extremely low during removing the oxide.The machined surface quality and dimensional accuracy achieved by LOMM were superior to those obtained by COMM.The surface roughness Saof the microgroove bottom reached 88 nm in LOMM,while the cross-sectional geometry of the microgroove was a trapezoid.Perpendicularity of the microgroove sidewall machined by LOMM was better than that by COMM.The tool wear forms in LOMM were coating spalling and slight tool nose breakage.Compared with COMM,the tool life in LOMM was prolonged significantly.It indicates that the proposed hybrid process is an effective and efficient way to fabricate high aspect ratio micro-features with high dimensional accuracy. | Guolong ZHAO Hongjun XIA Yang ZHANG Liang LI Ning HE Hans Nφrgaard HANSEN | 2021 | Chinese Journal of Aeronautics2021，34，4： | 3 |
| 2 | 含有菊粉但不含羽扇豆的饲粮有助预防实验诱导的猪痢疾显示文摘猪痢疾是一种传染性黏膜出血的腹泻疾病,由定植于肠道的猪痢疾短螺旋体引起,能够诱发盲肠和结肠发炎。据报道饲料中添加菊苣根和甜羽扇豆可预防猪痢疾。本试验旨在验证是菊苣根中的菊粉而不是羽扇豆中的半乳糖起到保护作用的假设。 | Hansen C F Phillips N D La T.(等) 闫轶洁(译) 无 | 2010 | 养猪2010，，6： | 2 |
| 3 | Geometrically necessary boundaries and incidental dislocation boundaries formed during cold deformation 显示文摘 | Liu Q Hansen N | 1995 | Scripta Metallurgiea et Materialia1995，32，8： | 1 |
| 4 | Risk of respiratory morbidity in term infants delivered by elective caesarean section:Cohort study显示文摘 | Hansen AK Wisborg K Uldbjerg N | 2008 | BMJ2008，336，7635： | 1 |
| 5 | The Problem of Nonresponse in Sample Surveys显示文摘 | Hansen M H Hurwitz W N | 1946 | Journal of the American Statistical Association1946，，41： | 1 |
| 6 | Early enteral supply of fiber and Lactobaeiili versus conventional nutrition: A controlled trial inpatients with major abdominal surgery显示文摘 | Rayes N Hansen S Seehofer D | 2002 | Nutrition2002，18，78： | 1 |
| 7 | Competition, Trust, and Reciprocity in the Devel- opment of Innovative Regional Milieux 显示文摘 | Hansen N | 1992 | Papers in Regional Science1992，71，2： | 1 |
| 8 | Designing Realised Kernels to Measure the Ex-Post Variation of Equity Prices in the Presence of Noise显示文摘 | Barndorff-Nielsen O E Hansen P R Lunde A Shephard N | 2008 | Econometrica2008，76，： | 1 |
| 9 | Targeting of liposome-associated calcipotriol to the skin:effect of liposomal membrane fluidity and skin barrier integrity显示文摘 | Knudsen N(O) Jorgensen L Hansen J | | 0，，416： | 1 |
| 10 | Genetically null mice reveal a central role for epidermal growth factor receptor in the differentiation of the hair follicle and normal hair development显示文摘 | Hansen L A Alexander N Hogan M E Sundberg J P Dlugosz A Threadgill D W Magnuson T Yuspa S H | | 0，，06： | 1 |
| 11 | Enhancement of strength and stability of nanostructured Ni by small amounts of solutes显示文摘 | ZHANG Hong-wen LUKe PIPPAN R HUANG Xiao-xu HANSEN N | 2011 | Scr Mater2011，65，： | 1 |
| 12 | Large strain deformation structures in AI single crystals with rolling texture orientations显示文摘 | Driver J H Juun Jensen D Hansen N | 1994 | Acta Metallurgical1994，42，： | 1 |
| 13 | Early enteral supply of fiber and Lactobacilli versus conventional nutrition:a controlled trial in patients with major abdominal surgery显示文摘 | Hansen S Seehofer D | 2002 | Nutrition2002，18，： | 1 |
| 14 | Growth limitation in marine red-tide dinoflagellates: effects of pH versus inorganic carbon availability显示文摘 | HANSEN P J LUNDHOLM N ROST B | 2007 | Mar Ecol Prog Ser2007，334，： | 1 |
| 15 | Supercritical fluid transport- chemical deposition of films显示文摘 | Hansen B N Hybertson B M Barkeley R M | 1992 | Chem Mater1992，，4： | 1 |
| 16 | Improvements and comparison of heuristics for solving multisource Weber problem显示文摘 | Brimberg J Hansen P Mladenovi N Tailand E | 2000 | Operations research2000，48，3： | 1 |
| 17 | Evolution of FCC deformation structure in polyslip显示文摘 | Bay B Hansen N Hughes D A | 1992 | Acta Metal Mater1992，40，2： | 1 |
| 18 | What's your strategy for management knowledge?显示文摘 | Hansen M T Nohria N Tierney T | 1999 | Harvard Business Review1999，77，2： | 1 |
| 19 | The emerging role of pituitary tumor transforming gene in tumorigenesis 显示文摘 | Tfelt - Hansen J Kanuparthi D Chattopadhyay N | 2006 | Clin Med Res2006，42，2： | 1 |
| 20 | Marker assisted selection of restored male fertile Brassica napus plants using a Set of dominant RAPD markers 显示文摘 | Hansen M Hallden C Nilsson N O | 1997 | Molecular Breeding1997，，3： | 1 |
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