Drill base body fabricated with additive manufacturing technology: structure, strenght and reliability

• Autorzy: Tyczyński Piotr , Siemiątkowski Zbigniew , Ruck Mirosław

Warianty tytułu

PL

Korpus wiertła wykonany za pomocą technologii addytywnej: struktura, wytrzymałość i trwałość

• Języki publikacji: EN

Abstrakty

EN

The paper presents an investigation of results on an additive manufactured drill base body. Due to the technological and strength limitations, conventional drills with inner coolant ducts may not be smaller than 13 mm diameter. The novel idea was to keep the strength of small diameter drills making spiral coolant ducts. Drills were fabricated using a 3D laser printer to obtain the designed geometry in a way not affecting its stiffness and strength. The tensile strength of samples was between Rm = 1287 and 1603 MPa, and microhardness of drills was between 606 and 627 HV5. The sintered material revealed a very small porosity rate (below 1%) and very few discontinuities. Thus, it was demonstrated that the 3D laser printing enabled the production of advantageous drill base bodies.

PL

W artykule przedstawiono wyniki badań korpusu wiertła wykonanego za pomocą technologii addytywnej. Ze względu na ograniczenia technologiczne i wytrzymałościowe tradycyjne wiertła z wewnętrznymi kanałami nie mogą mieć średnic mniejszych niż 13 mm. Zaprojektowano nowatorskie wiertła o mniejszych średnicach ze spiralnymi kanałami wewnętrznymi, które w mniejszym stopniu obniżają wytrzymałość korpusu. Wykonano je za pomocą laserowej drukarki 3D, gdyż uzyskanie takiego kształtu technologią tradycyjną jest bardzo utrudnione. Wytrzymałość próbek uzyskano w granicach od Rm = 1287 do 1603 MPa, a mikrotwardość pomiędzy 606 a 627 HV5. Uzyskany materiał wykazywał bardzo małą porowatość poniżej 1% i bardzo niewiele nieciągłości struktury. W ten sposób wykazano, że laserowy druk 3D daje możliwość wykonania korpusów wierteł o wysokiej wytrzymałości.

Słowa kluczowe

EN

additive manufacturing; selective laser melting; porosity, drilling; drill body design; coolant ducts

PL

technologie addytywne; technologia selektywnego topienia laserowego; porowatość; wiercenie; konstrukcja; korpus wiertła; kanały chłodzące

• Wydawca: Wydawnictwo Naukowe Instytutu Technologii Eksploatacji - Państwowego Instytutu Badawczego
• Czasopismo: Journal of Machine Construction and Maintenance - Problemy Eksploatacji
• Rocznik: 2019
• Tom: no. 2
• Strony: 59--65
• Opis fizyczny: Bibliogr. 24 poz., rys., tab.

Twórcy

autor

Tyczyński Piotr

• Mapal Narzędzia Precyzyjne Sp. z o.o., Poznań, Poland

autor

Siemiątkowski Zbigniew

• Faculty of Mechanical Engineering, Kazimierz Pulaski University of Technology and Humanities in Radom, Poland

autor

Ruck Mirosław

• Faculty of Mechanical Engineering, Kazimierz Pulaski University of Technology and Humanities in Radom, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).