The influence of process parameters on the surface topography in diamond turning of freeform optics

2010 ◽  
Author(s):  
Xiaoqin Zhou ◽  
Haiyang Zhang ◽  
Long Ma
Keyword(s):  
Surface Topography ◽  
Process Parameters ◽  
Diamond Turning ◽  
Influence Of Process Parameters ◽  
Freeform Optics

Surface Topography and Kerf Study of Nimonic 80A Using Wire-Cut EDM

2014 ◽  
Vol 808 ◽  
pp. 35-41 ◽  
Author(s):  
Amitesh Goswami ◽  
Jatinder Kumar
Keyword(s):  
Surface Topography ◽  
Process Parameters ◽  
Electrical Discharge Machining ◽  
Weight Ratio ◽  
High Strength ◽  
Machining Parameters ◽  
Influence Of Process Parameters ◽  
Nimonic 80A ◽  
Pulse On Time ◽  
Pulse Off Time

Nimonic-80A is a nickel based super alloy which is specifically used in aerospace industry for its high strength to weight ratio and corrosion resistance. This paper presents the influence of process parameters of wire cut Electrical Discharge Machining (WEDM) during the machining of Nimonic 80A with brass wire as electrode and optimization of machining parameters on kerf width. Process parameters (pulse-on time, pulse-off time, peak current, spark gap set voltage, wire feed and wire tension) have been investigated using L27orthogonal array. With the assistance of Taguchi quality design, ANOVA and F-test, significant parameters affecting the kerf have been identified. The surface topography of machined samples has been studied in correlation with the rate of input energy into the spark.

Influence of Process Parameters, Surface Topography and Corrosion Condition on the Fatigue Behavior of Steel/Aluminum Hybrid Joints Produced by Magnetic Pulse Welding

2019 ◽  
Vol 809 ◽  
pp. 197-202 ◽  
Author(s):  
Selim Mrzljak ◽  
Nikolai Gelinski ◽  
Daniel Hülsbusch ◽  
Eugen Schumacher ◽  
Stefan Boehm ◽  
...  
Keyword(s):  
Surface Topography ◽  
Process Parameters ◽  
Discharge Current ◽  
Weld Seam ◽  
Fatigue Behavior ◽  
Magnetic Pulse ◽  
Influence Of Process Parameters ◽  
Corrosion Condition ◽  
Damage Initiation ◽  
Hybrid Joints

In this study, magnetic pulse welded steel/aluminum hybrid joints are investigated with the aim of optimizing the process parameters regarding the fatigue behavior. Changes in discharge current, acceleration distance, welding geometry as well as influences of surface topography and corrosion, are examined regarding fatigue life and damage mechanisms. Instrumented multiple amplitude tests combined with constant amplitude tests are carried out for assessing structure-property-relations in a resource-efficient manner. Stress-induced change in strain and alternating current potential drop measurement are well suited for reliable detection of damage initiation and estimation of the fatigue limit. Results reveal that the fatigue properties primarily depend on the imperfections of the weld seam, which are affected mostly by the discharge current and the surface topography. Corrosion shows to be a relevant factor since it decreases fatigue performance. Suitable process parameters are achieved when the fatigue strength of the weld seam lies above the weaker hybrid joint (aluminum). For S235JR and EN AW1050A-H14 (Al99.5) a suitable discharge current was found to be 349 kA at an acceleration distance of 1.5 mm.

Influence of Process Parameters on the Morphologies of Micro-Injection Molded Polyformaldehyde Parts

2019 ◽  
Vol 34 (3) ◽  
pp. 367-375
Author(s):  
L.-X. Wang ◽  
D.-F. Wang ◽  
L. Jiang ◽  
N. Bian ◽  
Q. Li ◽  
...  
Keyword(s):  
Process Parameters ◽  
Influence Of Process Parameters ◽  
Injection Molded

scholarly journals Diffractive optical characteristics of nanometric surface topography generated by diamond turning

2021 ◽  
Vol 67 ◽  
pp. 23-34
Author(s):  
Dongxu Wu ◽  
Chengwei Kang ◽  
Fusheng Liang ◽  
Guangpeng Yan ◽  
Fengzhou Fang
Keyword(s):  
Surface Topography ◽  
Diamond Turning ◽  
Optical Characteristics

scholarly journals Influence of Process Parameters on Dynamics of Traction Motor Armature

2021 ◽  
Vol 54 ◽  
pp. 961-971
Author(s):  
Sergey Shantarenko ◽  
Victor Kuznetsov ◽  
Eugene Ponomarev ◽  
Alexander Vaganov ◽  
Alexey Evseev
Keyword(s):  
Process Parameters ◽  
Influence Of Process Parameters ◽  
Traction Motor
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