Impact of depth of cut on chip formation in az91hp magnesium alloy milling with tools of varying cutting edge geometry

• Autorzy: Gziut O. , Kuczmaszewski J. , Zagórski I.

Identyfikatory

DOI

10.12913/22998624/2364

• Języki publikacji: EN

Abstrakty

EN

Safety of Mg milling processes can be expressed by means of the form and the number of fractions of chips formed during milling. This paper presents the state of the art of magnesium alloys milling technology in the aspect of chip fragmentation. Further-more, the impact of the depth of cut ap and the rake angle γ on the number of chip fractions was analysed in the study. These were conducted on AZ91HP magnesium cast alloy and milling was performed with carbide tools of varying rake angle values (γ = 5º and γ = 30º). It was observed that less intense chip fragmentation occurs with decreasing depth of cut ap. The number of chip fractions was lower at the tool rake angle of γ = 30º. The test results were formulated as technological recommendations according to the number of generated chip fractions.

Słowa kluczowe

EN

high-speed dry milling; magnesium alloys; machinability; magnesium chips; end-mill geometry

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2015
• Tom: Vol. 9, nr 26
• Strony: 49--56
• Opis fizyczny: Bibliogr. 20 poz., fig., tab.

Twórcy

autor

Gziut O.

• Student of Mechanical Engineering Faculty, Lublin University of Technology, 36 Nadbystrzycka Str., 20-618 Lublin, Poland

autor

Kuczmaszewski J.

• Department of Production Engineering, Mechanical Engineering Faculty, Lublin University of Technology, 36 Nadbystrzycka Str., 20-618 Lublin, Poland

autor

Zagórski I.

• Department of Production Engineering, Mechanical Engineering Faculty, Lublin University of Technology, 36 Nadbystrzycka Str., 20-618 Lublin, Poland

Bibliografia

• 1. Akyuz B.: Machinability of magnesium and its alloys. The Online Journal of Science and Technology, 1(3), 2011, 31–38.
• 2. Arai M., Sato S., Ogawa M., Shikata H.I.: Chip control in finish cutting of magnesium alloy. Journal of Materials Processing Technology 62, 1996, 341–344.
• 3. Fang F.Z., Lee L.C., Liu X.D.: Mean flank temperature measurement in high speed dry cutting, Journal of Materials Processing Technology, 167, 2005, 119–123.
• 4. Guo Y.B., Salahshoor M.: Process mechanics and surface integrity by high-speed dry milling of bio-degradable magnesium–calcium implant alloys. CIRP Annals – Manufacturing Technology, 59, 2010, 151–154.
• 5. Gziut O., Kuczmaszewski J., Zagórski I.: The influence of technological parameters and geometric features of a cutting edge on cutting forces during AZ91HP alloy milling. Advances in Manufacturing Science and Technology, 38(2), 2014, 83–92.
• 6. Hou J.Z., Zhou W., Zhao N.: Methods for prevention of ignition during machining of magnesium alloys. Key Engineering Materials, Vol. 447–448, 2010, 150–154.
• 7. Kuczmaszewski J.: Efektywność wytwarzania elementów lotniczych ze stopów aluminium i magnezu. Komputerowo Zintegrowane Zarządzanie, Oficyna Wyd. Polskiego Towarzystwa Zarządzania Produkcją, Opole 2011, 7–18.
• 8. Kuczmaszewski J., Zagórski I.: Badania fragmentowania wiórów w procesie frezowania stopów magnezu (in Polish). Mechanik, Vol. 8–9, 2014, 321–328.
• 9. Kuczmaszewski J., Zagórski I.: Control of the weight, ignition temperature and actual temperature of chips produced when machining some selected magnesium alloy grade (in Polish). Mechanik, Vol. 10, 2012, 824–828.
• 10. Kuczmaszewski J., Zagórski I.: The study of cutting forces and amplitudes during the milling magnesium alloys (in Polish). Advances in Science and Technology Research Journal, Vol. 15, 2012, 228–237.
• 11. Le Coz G., Marinescu M., Devillez A., Dudzinski D., Velnom L.: Measuring temperature of rotating cutting tools: Application to MQL drilling and dry milling of aerospace alloys. Applied Thermal Engineering, Vol. 36, 2012, 434–441.
• 12. Li, H.Z., Liu, K., Li, X.P.: A new method for determining the undeformed chip thickness in milling.Journal of Materials Processing Technology, 113(1–3), 2001, 378–384.
• 13. Lotfi Sai, Bouzid W., Zghal A.: Chip thickness analysis for different tool motions for adaptive feed rate. Journal of Materials Processing Technology, 204(1–3), 2008, 213–220.
• 14. Oczoś K.E.: Extension of the magnesium alloys application range (in Polish), Mechanik, Vol. 5–6, 2009, 386–400.
• 15. Oczoś K.E., Kawalec A.: Light metals forming (in Polish). PWN, Warsaw 2012.
• 16. Zagórski I., Kuczmaszewski J.: The study of cutting forces and their amplitudes during high-speed dry milling magnesium alloys. Advances in Science and Technology Research Journal, 7(20), 2013, 61–66.
• 17. Zagórski I., Pieśko P.: Badania porównawcze chropowatości powierzchni wybranych stopów magnezu po frezowaniu narzędziem pełno-węglikowym oraz PKD. Postępy Nauki i Techniki, No. 8, 2011, 53–58.
• 18. Zhao N., Hou J., Zhu S.: Chip ignition in research on high-speed face milling AM50A magnesium alloy. Second International Conference on Mechanic Automation and Control Engineering, 15–17 July 2011, Inner Mongolia, China.
• 19. http://www.nanomag.us/Hydro_Mg_Brochure_ Machining_Mg.pdf Machining magnesium, z dnia 19.01.2012.
• 20. Polska Norma: Badanie trwałości noży tokarskich punktowych, PN–ISO 3685:1996.