Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center 7 ppt
Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_1 pot
... G-code. Conversely, a ‘non-modal’ G-code will only aect the programmed block in which it appears. Machinability and Surface Integrity 7 Machinability and Surface Integrity ‘It is common sense ... commercial (PPT) testpiece has been developed showing typical machining data employed, based upon the secondary machining operations de- manded by many companies on...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_2 docx
... technique in conjunction with a strictly controlled and limited ma- chining strategy – based upon some form of ‘orthogo- nal array’ , in combination with the strength (i.e >5% ‘F-ratio’) of parameters ... situation is that surface texture continuously degen- erates, and it is only the burnishing (i.e.‘ironing’) of the surface that ‘masks’ the temporary improvement in mac...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_4 pot
... at high feedrates when high- speed machining. Machinability and Surface Integrity Figure 1 57. A chatter model, with potential chatter conditions and the application of the ‘stability lobe ... result of energy Machinability and Surface Integrity dissipation – heat transformation, which could result in decreased tool life, with the superu- ous eect of therm...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_5 pdf
... con- dition. Machinability and Surface Integrity Figure 163. Surface texture data- capture, with techniques for the derivation of the arithmetic roughness parameter: Ra. Machinability and Surface ... and position of the honing stroke, the hon- ing stick pressure (Vc). e inclination angle of the cross-hon- ing action, is a product of the up-/down-ward head motion (...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_7 ppt
... ‘T’. NB is rate of heat generation only exists within the primary and secondary deformation zones. By way of example of how the temperature genera- tion/distribution occurs in orthogonal cutting, ... power of simulation – more will be mentioned on this subject later in the chapter. 7. 7 Tool Wear and Life Introduction e working environment for most machining pro- cesses i...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_8 doc
... deformation – occurs when high pressures (i.e. compression) are exerted on the cutting edge in combination with elevated temperatures. Con- ditions likely to create plastic deformation on the ... of tool/workpiece anity associated with tem- Machinability and Surface Integrity • good quality and consistent workpiece material is to be utilised; • that the condition...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_9 docx
... forming forces with very high- frequency acoustic emissions (AE). e application of AE in association with other Figure 177 . The correlation of typical manufacturing cost factors: machining ... application of the above equation for practical machining operations, due to the vast amount of machining data that is necessary to determine the parameters of this equation...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_10 ppt
... thrust force component, • F C = cutting force component, • F N = normal force component on the shear plane, • F S = shear force component on shear plane, • R = resultant tool force component, • ... degree of con- sistency in the dialogue only one particular company’s FEA product will now be described. Computer Simulation of Machining Processes – an Introduction By...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_11 pot
... 7. 10 Surface Integrity of Machined Components – Introduction Previously in Section 7. 5 concerning machined sur- face texture, the discussion was principally concerned with the resultant surface ... testing the surface topography. In Fig. 187b, an 11° sectional cut improves surface discrimination by increasing the vertical section magnication by around ve times. e...
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Machining of High Strength Steels With Emphasis on Surface Integrity by air force machinability data center_12 pptx
... Figure 189. The inuence of the cutting edge’s condition on the resultant machined surface integrity . Machinability and Surface Integrity condition degrades the functional performance, due ... region extends to quite a small depth beneath the surface, in the region of 10 to 100 µm, de - pending upon the severity of the ‘abusive regime’ of surface generation. Con...
Ngày tải lên: 21/06/2014, 22:20