SCIENCE TECHNOLOGY! MO HINH HOA ANH Hl/CfNGCUACHEDQCATDEN LI/CCAT TRONG GIA CONG PHAY CAO TOC BANG DAO PHAY NGON MODELINGTHE INFLUENCE OF CUTTING PARAMETERS ON THE CUTTING FORCE IN HIGH SPEED MILLING USING END-MILL Hoang Tien Dung, Tran Van Djch, Nguyen Huy Ninh •(M— Tom t i t Bai bao trinh bay viec khjo sat va mo hinh hoa anh hirdng cua che So dx Sen lye dt qua trlnh gia eong cao toe ThiTe nghiem luc cSt qua trinh gia cdng bien dang vat lieu thep C45 b k g dao phay ngon It^n khoi, i ^ g dung philtmg phap phan tich phuong sai (ANOVA) xay dung moi quan he phu thugc cQa cac phan life cat v ^ die So cat gia eong phay cao tdc bSng dao phay ngon Tren co sd phurnig trinh mo hinh hoa anh hUdng giijp nha cfing nghe thiTc hien tol Uu hoa tfnh va dong qua trinh gia eong Qua hifdng tdi sin pham may gia eong thong minh tif thkh nghi qua trinh san xuat Tilf khda: Li/c cat, che cat, phay cao toe, dao phay ngon, thep C45, phan tich phuong sai Abstract This paper presents a sun/ey and modeling the effects of cutting parameters to cutting force in high speed machining process Experimentally measured oitring forces when cutting contour on C45 steel by the solid end-mill tool and application ANOVAR (Analysis Of Variance) are used to build a dependence of the components of cutting force with cutting parameters In high speed milling by solid end-mill tool Based on this model the machining process is optimized and the self-optimizing control for Intelligent CNC Machine Tools in machining process is earned out Keywords: Cutting forces, cutting parameters, high speed milling, end mill, steel, ANOVA ThS Hoang Tien DOng • Tnrcmg Dai hoc Cong nghiep H^ N6i GS.TS.Tr3n(ftnflidi,TS Nguyen Huy Ninh TrUdng Dai hoc Bach khoa ifa Noi Email: tiendunghaui#gmaJl.eom I.DATVANOg Hudng tdi to! Uu hoa qua trlnh gia c6ng dem lai chat laong san pham, nang suat gia eong Van de nghien cCTu cac thong so eong nghe anh hifdng tdi dong lac hoc gia eong qua trinh gia eong la rat can thiet, dac biet hon nC^a la doi vdi ITnh vac gia eong toe cao Bdi vl gia eong cao toe dang dUdc nghien ciJu va iJfng dung manh Ngay nhan bai: 20/8/2014 Ngdydiap nhan dang: 20/10/2014 s^n xuat Sd phan tfch anh hudng dpng luc hoc may va ddng lye hpe gia eong he thong gia cdng (hinh 1) Trong gia eong nghien ciJu dpng lac hoc eat la van de khd va no cung la van de de gi^i quyet cot loi bai toan gia cdng Dae biet la gia eong tdc cao ddng lye hoc may va dong lac hpc gia cdng het sdc quan De dat dupe chat lapng be mat yeu Kinh Anh hudng dong lire hpc may va dpng liic gia eong tren he thong gia eong cau hay nghien cau toi Uu hda eac dieu kien gia cdng tang ehat lupng be mat gia eong va nang suat gia cdng Qua nghien cOu cac nha khoa hpc cung daa cac yeu to chinh lien quan va anh hadng tdi chat laong be mat qua trinh gia eong (hlnh 2) Lue cat la thong sd gian tiep anh hadng tcifi ehat lupng be mat gia cdng Va luc eat la thdng so rat quan trpng md hinh hda he thdng Hinh2.Cacvandechinii anh hucrng den chinh xac be mat thuan Muc dich chinh nghien cijfu khoa hpc va cdng nghe van de gia cdng la xay dang dupe md hinh hda, md phdng, tdi Uu hda va dieu khien S624.2014-TapchiKHOAHpC&CONGNGHE ^^ CONG NGHE qua trinh gia cdng (hinh 3) Qua trlnh gia cdng va mifc phtfc tap eua cdng nghe ddi hdi he thdng dieu khien thue hien xCf ly chinh xac bang cac phaong phap khac nham muc dich tang ehat lUpng va hieu qua Nghien cau xay dang ham toan hpc dp tin cay cao va cac hien tapng xuat hien qua trlnh gia cdng tdt nhat cd the Ky thuat gia cdng chinh xac khdng ehi daa tren ecf sd kinh nghiem va sa tinh thdng ma phai hieu nguyen ly gia cdng va moi quan he toan hoc cac thdng so ^nh hadng qua trinh gia cdng Qua trinh gia eong daoc xac dinh bdi mdi quan he cua eac gia trj dau vao va hieu qua daoc qua gia tri dau Hinh md hlnh qua trinh gia eong dUde sir dung nghien cau bai bao vdi thdng sd dau vao va danh gia dau Muc dich cua nghien cau la tim mo hinh toan hpe lien quan den nham be mat (RJ, cac phan lUe eat vdi ba thong so che dp cat: tdc dd cSt (v), laong chay dao (f), chieu sau cat theo phaong hudng kinh {a) gia cdng bien dang b^ng cJao phay ngon Nghien ciJu tiep can vdi phaong phap phan tfch phacJng sai (ANOVA) va cac phan mem ang dung thdng ke quy hoach thuc nghiem de xay dung md hlnh toan hoc P H A N TfCH HI|N Tl/ONG CO BAN TRONG QUATRINH GIA CONG Trong qua trinh gia eong ed nhieu hien tapng xay anh hadng tdi chat laong va nang suat gia cdng Mdt nhufng hien tapng quan trpng xay qua trinh gia eong la chat ladng be mat, lUc c3t Md hinh hda hien tapng qua trinh gia cdng de cung cap thong tin quan trpng lap quy trinh cdng nghe gia cdng ehi tiet va toi Uu hda qua trinh gia cdng Co ehe hinh be mat qua trlnh ddng lac hpc phay dape xac dinh la lac c3t Kiem soat sa thay doi qua trinh gia cdng la lac cat, nd phan anh rd net nhat gia p M.,*,., o.*,- 1 \r J ^ i •• Qulirirti U -.T MatalnbMa [^DIib[ô10l jn dinh gii cOig -ã i ""bl T Ctllliifi^lii mltguetag i •' biiD|i