SIMS Analysis of the wear of boron nitride tools for the machining of compacted graphite iron and grey cast iron

1999 ◽  
Vol 365 (1-3) ◽  
pp. 142-146 ◽  
Author(s):  
M. Gastel ◽  
U. Reuter ◽  
H. Schulz ◽  
H. M. Ortner
Keyword(s):  
Cast Iron ◽  
Boron Nitride ◽  
Grey Cast Iron ◽  
Compacted Graphite Iron ◽  
Compacted Graphite ◽  
Grey Cast ◽  
Sims Analysis

scholarly journals Investigation of Drilling Machinability of Compacted Graphite Iron under Dry and Minimum Quantity Lubrication (MQL)

Metals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1095 ◽  
Author(s):  
Li ◽  
Wu ◽  
Kuzu ◽  
Zhao ◽  
Hong
Keyword(s):  
Cast Iron ◽  
Wear Mechanism ◽  
Minimum Quantity Lubrication ◽  
Grey Cast Iron ◽  
Compressed Air ◽  
Drilling Process ◽  
Compacted Graphite Iron ◽  
Machine Material ◽  
Compacted Graphite ◽  
Grey Cast

Compacted graphite iron (CGI), which is used as a potential material in the auto industry, is a hard-to-machine material for the different minor elements and for the geometry of graphite with grey cast iron. The machinability of CGI in the drilling process was investigated with a 4-mm diameter fine-grain carbide twist drill under four lubrication conditions, dry (no compressed air), dry (with compressed air), MQL 5 ml/h, and MQL 20 mL/h in this paper. The maximum flank wear, types of wear, and cutting loads were studied for identifying the wear mechanism in drilling of CGI. The tool life in the four experiments of CGI drilling is 639 holes, 2969 holes, 2948 holes, and 2685 holes, respectively. The results showed that the main wear mechanism in drilling of CGI is adhesion and abrasion. Carbon, which originates from the graphite of CGI, can improve the lubrication in the drilling process by comparing with MnS in drilling grey cast iron. The thrust force and torque are more than 1000 N and 150 N*cm after 2700 holes in CGI drilling. Drilling of CGI under dry conditions (with compressed air) and MQL 5 ml/h is feasible.

scholarly journals Influence of Shot Peening Parameters on Residual Stresses in Flake and Vermicular Cast Irons

2013 ◽  
Vol 768-769 ◽  
pp. 534-541 ◽  
Author(s):  
Matthias Lundberg ◽  
Ru Lin Peng ◽  
Maqsood Ahmad ◽  
Taina Vuoristo ◽  
Daniel Bäckström ◽  
...  
Keyword(s):  
Cast Iron ◽  
Residual Stresses ◽  
Shot Peening ◽  
High Surface ◽  
Lower Surface ◽  
Grey Cast Iron ◽  
Cast Irons ◽  
Compacted Graphite ◽  
Grey Cast ◽  
Compressive Residual Stresses

Test samples of grey and compacted graphite cast irons with pearlitic matrix were shot-peened to different surface conditions using twelve different combinations of shot size, peening intensity and peening coverage percentage. Relatively high surface compressive residual stresses varying between 245 to 565 MPa were observed and the compressive residual stresses reached a depth between 280 µm and 770 µm. Within the range of peening parameters used, the compacted graphite cast iron with its vermicular graphite showed a somewhat better response to the same shot-peening treatment than the grey cast iron containing flake graphite, giving a larger peening affected zone with higher compressive residual stresses. For both the cast irons, an increase in peening coverage percentage, shot size or peening intensity led often to a lower surface compressive stress. However, peening using a higher intensity greatly increased the degree and extent of plastic deformation and therefore increased the magnitude and penetration depth of the subsurface compressive residual stresses, while the effect of increasing shot size also depends on the peening intensity. On the other hand, measurements on the grey cast iron samples showed that the peening coverage has little effect on the depth profile of residual stress.

CHARACTERISTIC INTERNAL FRICTION SPECTRUM OF GREY CAST IRON

1981 ◽  
Vol 42 (C5) ◽  
pp. C5-929-C5-934 ◽  
Author(s):  
P. Millet ◽  
R. Schaller ◽  
W. Benoit
Keyword(s):  
Cast Iron ◽  
Internal Friction ◽  
Grey Cast Iron ◽  
Grey Cast ◽  
Internal Friction Spectrum

scholarly journals Corrosion resistance study of grey cast iron implanted with C, N, Cr and Cu ions

2017 ◽  
Vol 87 ◽  
pp. 092030 ◽  
Author(s):  
O Yu Usanova ◽  
L A Maryushin ◽  
A Yu Kazantsev ◽  
A I Dyukova
Keyword(s):  
Corrosion Resistance ◽  
Cast Iron ◽  
Grey Cast Iron ◽  
Grey Cast ◽  
Cu Ions

Potentiostatic studies of the corrosion of grey cast iron in sulphuric acid and sodium hydroxide solutions

1987 ◽  
Vol 27 (3) ◽  
pp. 221-228 ◽  
Author(s):  
Lammia M. Al-Shama ◽  
Jalal Mohammed Saleh ◽  
Naema A. Hikmat
Keyword(s):  
Cast Iron ◽  
Sodium Hydroxide ◽  
Sulphuric Acid ◽  
Grey Cast Iron ◽  
Grey Cast
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