powder productıon and nano materıals - 6th International Powder ...

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6. ULUSLARARASI TOZ METALURJİSİ KONFERANSI ve SERGİSİ
th INTERNATIONAL POWDER METALLURGY CONFERENCE & EXHIBITION
HÖGANAS’ NEW MACHINABILITY ENHANCING MATERIALS
Philippe SZABO*, Eda YILMAZTÜRK YÜKSEKDAĞ**
*Höganas AB, France Office, 1117 Avenue Edouard Herriot, B.P. 117, F 69654, Villefranche sur Saone Cedex,
France, philippe.szabo@hoganas.com
**Höganas AB, Turkey Agency Office, Eksper Endustriyel Hammadde ve Dis Ticaret Ltd Sti, Sipahioglu Caddesi,
Salkim Apartmani, No:11 D:13, 34149, Yesilyurt, Istanbul, Turkey, eda@eksperdisticaret.com
ABSTRACT
This Höganäs presentation is done in order to show how it can be find improvement for machining processes, through
material selection. A straightforward way to improve the process is to use a material with enhanced machinability.
By adding small portions of machinability enhancing materials to the powder mix for component production, it can
be got significantly increased tool life (or productivity) and improved surface finish of the components.
Höganäs provides four different additives to choose from: totally new MnM and SM3, and the traditional MnX,
MnS. The optimal choice is dependent on the machinability process, indeed.
Main benefits to target are:
• higher productivity
• increased tool life
• improved surface finish
Key Words: MnX, MnS, PM Enhancing Materials, Machinability of PM Parts.
1. INTRODUCTION
Powder Metallurgy (PM) is well known for producing complex parts to very close tolerance. Yet, machining is still
important for some applications:
- Further demands on tolerances
- Undercuts
- Further demands on surface quality
2. MACHINABILITY
Assumed that machining operation can be defined as a “chip removing operation“. Therefore, we can consider
machinability as a general property, strongly influenced by machining process.
When determination to do as questioning “Is it easy to machine the material?” or “How to characterize
machinability?” , we can summarize this topic through measurement of tool wear and life (the real action between
tool edge and material) and then, surface quality of the machined part - cutting forces and torques -
shape of chip.
3. OBJECTIVE
Carry out “Drilling & Turning” tests on three different PM steels. Investigate how drill tool grades and additives will
influence machinability.
3.1 Experimental - Materials and Specimens for Machinability Experiments
Materials and Specimens:
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