TY - JOUR AU - Czampa, Miklós AU - Biró, István AU - Szalay, Tibor TI - A novel machinability test for determining the cutting behaviour of iron-based, carbon-containing and copper-containing powder metallurgy steels (PMS) JF - INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY J2 - INT J ADV MANUFACT TECHNOL VL - 89 PY - 2017 IS - 9-12 SP - 3495 EP - 3507 PG - 13 SN - 0268-3768 DO - 10.1007/s00170-016-9313-x UR - https://m2.mtmt.hu/api/publication/3102549 ID - 3102549 N1 - Funding Agency and Grant Number: EUEuropean Commission [H2020-WIDESPREAD-2014-1-FPA 664403]; international bilateral project 'Experimental and theoretical optimization and control of machining technology and tool path for micro milling' [TET_12_MX-1-2013-0015]; CEEPUS III [HR 0108] Funding text: This research is partly supported by the EU-funded H2020 project 'Centre of Excellence in Production Informatics and Control' (EPIC) under project number H2020-WIDESPREAD-2014-1-FPA 664403. The research results are used in the international bilateral project 'Experimental and theoretical optimization and control of machining technology and tool path for micro milling' listed under number TET_12_MX-1-2013-0015. The authors would also like to acknowledge the support provided by the CEEPUS III HR 0108 project. The authors also express their gratitude to Carbosint Kft. for supporting the production of test specimens and for cooperating in their evaluation. AB - Parts made by powder metallurgy generally do not require subsequent machining operations. However, further machining of these sintered parts cannot be avoided in case of special, complex geometries. The goal of the research discussed in this paper is to create an easy-to-use, time-efficient and cost-efficient method to describe the secondary machining properties of iron-based, copper-containing and carbon-containing powder metallurgy steels (PMSs) in terms of the energy indicators. In order to compare the machinability of PMSs with different compositions, a new test method was developed. Considering the high importance of the turning process in the manufacturing of PMS parts, a short axial grooving test was developed. Cutting force measurements were carried out where the characteristics of the measured signal referred to the machinability of the tested materials. This newly developed test can be carried out quickly, and it can successfully be applied to characterize the energetics of PMS machining. Based on the test results, appropriate alloying element percentages could be determined. LA - English DB - MTMT ER - TY - JOUR AU - Czampa, Miklós AU - Biró, István AU - Szalay, Tibor TI - Effects of different cutting conditions on the surface roughness parameters of iron-copper-carbon powder metallurgy composites JF - INTERNATIONAL JOURNAL OF MACHINING AND MACHINABILITY OF MATERIALS (IJMMM) J2 - INT J MACHINING MACHINABILITY MATER VL - 19 PY - 2017 IS - 5 SP - 440 EP - 456 PG - 17 SN - 1748-5711 DO - 10.1504/IJMMM.2017.10008552 UR - https://m2.mtmt.hu/api/publication/3281797 ID - 3281797 LA - English DB - MTMT ER - TY - JOUR AU - Czampa, Miklós AU - Markos, Sándor AU - Szalay, Tibor TI - Improvement of Drilling Possibilities for Machining Powder Metallurgy Materials JF - PROCEDIA CIRP J2 - PROCEDIA CIRP VL - 7 PY - 2013 SP - 288 EP - 293 PG - 6 SN - 2212-8271 DO - 10.1016/j.procir.2013.05.049 UR - https://m2.mtmt.hu/api/publication/2693796 ID - 2693796 LA - English DB - MTMT ER -