ÜRETİM ŞARTLARININ YERÇEKİMİNE TERS DÖKÜM YÖNTEMİYLE ÜRETİLEN PARÇALARIN YAPI VE MEKANİK ÖZELLİKLERİNE ETKİLERİ
Öz
Bu çalışmada, döküm sıcaklığı ve basıncının yaş kum kalıplar kullanılarak geleneksel yerçekimi (gravity casting) ve yerçekimine ters döküm (counter gravity casting) yöntemleri ile üretilen Al-% 10 Si alaşımının yapı ve mekanik özelliklerine etkileri araştırılmıştır. Alaşıma ait numuneler 600, 640 ve 690°C sıcaklıklarda 100, 200, 250, 300 ve 500 mmHg vakum seviyelerinde dökülmüştür. Elde edilen sonuçlar, yerçekimine ters döküm yöntemiyle üretilen parçaların geleneksel döküm yöntemiyle üretilen parçalarda daha üstün mekanik özelliklere
sahip olduklarını göstermiştir.
Anahtar Kelimeler
Kaynakça
- G.D.Chandley, “Use of Vacuum for Counter
- Gravity Casting of Metals” Materials Res.
- Innovant, pp: 14-23, 1999.
- F.Ripkin and S.Lipson, “Counter Gravity
- Casting of Aluminum Alloys in Green Sand
- Molds” AFS Transactions, 67-70, pp: 581-592,
- -
- Anon, “Turning the Gating World Upside
- Down”, Technical Paper, Hitchiner
- Manufacturing Co., (www.hitchiner.com)
- -
- G.D.Chandley, “Counter Gravity Casting of
- Aluminum in Investment and Sand Molds”, AFS
- Transactions, 86-39, pp: 209-214, 1986.
- S.Lipson and F.Ripkin, “Effect of Sections
- Thickness on the Tensile Properties of Thin-
- Section Aluminum Alloy Sand Casting” AFS
- Transactions, 69, pp: 192-197, 1969.
- G.D.Chandley and M.C.Flemings, “Gating
- Premium Quality Casting” AFS Transactions,
- -37, pp: 121-128, 1988.
- M.C.Flemings, H.F.Conrad and H.F.Taylor,
- “Aluminum Alloys Fluidity Test” AFS
- Transactions, 93-59, pp: 496-507, 1993.
- I.H.Katzarov and others, “Porosity Formation in
- axi-symetric castings produced by countergravity
- casting method” International Journal
- of Heat and Mass Transfer, Vol: 44, pp: 111-
- , 2001.
- D.M.Stefanescu and others, “In Situ Research
- Utilization for Processing of Metals Alloys on
- Lunar and Mars Bases”, (www.
- Science.nasa.gov/newhome/headlines/
- space98pdf/insitu.pdf) 2003.
- G.D.Chandley, “Making casting without ladles
- or sprues – the CLA process” AFS
- Transactions, 76-28, pp: 37-42, 1976.
- Anon, Molding Methods and Materials,
- American Foundryman’s Society
- publications, Illinois, USA, pp: 120-300, 1962.
- E.S. Kim, K.H. Lee and Y.H. Moon, “A
- feasibility study of the partial squeeze and
- vacuum die casting process”, Journal of
- Materials Processing Technology 105, p: 42-
- , 2000.
- X.P. Niu, B.H. Hu, I. Pinwill and H. Li,
- “Vacuum assisted high pressure die casting of
- aluminium alloys”, Journal of Materials
- Processing Technology 105, p: 119-127, 2000.
- Anson, J.P., Stucky, M. and Druzleski, J.E.,
- “Effect of Sr modification on nucleation and
- growth of microporosity during the solidification
- of Al-7%Si foundry alloy”, AFS Transactions,
- -70, p: 419-426, 2000.
- Campbell, J. “Casting” Butterworth-
- Heinemann, 120-300, 1999.
EFFECTS OF PROCESS PARAMETERS ON THE STRUCTURE AND MECHANICAL PROPERTIES OF THE PARTS PRODUCED BY COUNTER GRAVITY CASTING PROCESS
Öz
In this study, the effects of pouring temperature and pressure on structure and mechanical properties of Al - 10%
Si alloys produced by green sand mold traditional gravity casting and counter gravity casting methods were
investigated. The specimens were poured at 600, 640 and 690°C temperature under 100, 200, 250, 300 and 500
mmHg vacuum level. The results showed that improved mechanical properties were obtained by counter gravity
casting process
Anahtar Kelimeler
Counter gravity casting green sand mold mechanical properties
Kaynakça
- G.D.Chandley, “Use of Vacuum for Counter
- Gravity Casting of Metals” Materials Res.
- Innovant, pp: 14-23, 1999.
- F.Ripkin and S.Lipson, “Counter Gravity
- Casting of Aluminum Alloys in Green Sand
- Molds” AFS Transactions, 67-70, pp: 581-592,
- -
- Anon, “Turning the Gating World Upside
- Down”, Technical Paper, Hitchiner
- Manufacturing Co., (www.hitchiner.com)
- -
- G.D.Chandley, “Counter Gravity Casting of
- Aluminum in Investment and Sand Molds”, AFS
- Transactions, 86-39, pp: 209-214, 1986.
- S.Lipson and F.Ripkin, “Effect of Sections
- Thickness on the Tensile Properties of Thin-
- Section Aluminum Alloy Sand Casting” AFS
- Transactions, 69, pp: 192-197, 1969.
- G.D.Chandley and M.C.Flemings, “Gating
- Premium Quality Casting” AFS Transactions,
- -37, pp: 121-128, 1988.
- M.C.Flemings, H.F.Conrad and H.F.Taylor,
- “Aluminum Alloys Fluidity Test” AFS
- Transactions, 93-59, pp: 496-507, 1993.
- I.H.Katzarov and others, “Porosity Formation in
- axi-symetric castings produced by countergravity
- casting method” International Journal
- of Heat and Mass Transfer, Vol: 44, pp: 111-
- , 2001.
- D.M.Stefanescu and others, “In Situ Research
- Utilization for Processing of Metals Alloys on
- Lunar and Mars Bases”, (www.
- Science.nasa.gov/newhome/headlines/
- space98pdf/insitu.pdf) 2003.
- G.D.Chandley, “Making casting without ladles
- or sprues – the CLA process” AFS
- Transactions, 76-28, pp: 37-42, 1976.
- Anon, Molding Methods and Materials,
- American Foundryman’s Society
- publications, Illinois, USA, pp: 120-300, 1962.
- E.S. Kim, K.H. Lee and Y.H. Moon, “A
- feasibility study of the partial squeeze and
- vacuum die casting process”, Journal of
- Materials Processing Technology 105, p: 42-
- , 2000.
- X.P. Niu, B.H. Hu, I. Pinwill and H. Li,
- “Vacuum assisted high pressure die casting of
- aluminium alloys”, Journal of Materials
- Processing Technology 105, p: 119-127, 2000.
- Anson, J.P., Stucky, M. and Druzleski, J.E.,
- “Effect of Sr modification on nucleation and
- growth of microporosity during the solidification
- of Al-7%Si foundry alloy”, AFS Transactions,
- -70, p: 419-426, 2000.
- Campbell, J. “Casting” Butterworth-
- Heinemann, 120-300, 1999.
Ayrıntılar
| Birincil Dil | Türkçe |
|---|---|
| Konular | Mimarlık |
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 1 Mart 2013 |
| Gönderilme Tarihi | 3 Haziran 2014 |
| Yayımlandığı Sayı | Yıl 2006 Cilt: 21 Sayı: 2 |