3.5.1 Material Design, Collection And Programming
3.5.1 Material Design, Collection and Programming
First of all, the specimen designs have been drawn using the AutoCAD software. Two design have been drawn which were specimen for the tensile test and also specimen for the hardness test. Figure 3.3 and Table 3.3 shows the tensile specimen design with measurement. Figure 3.4 shows the design hardness specimen design and measurement.
Figure 3.3: Tensile specimen design
Table 3.3: Tensile specimen measurement
All values in mm Sheet type, 12.5mm Wide
Gauge length 50 ± 0.1
Width 12.5 ± 0.2
Fillet radius (min.) 12.5
Overall length (min.) 200
Length of reduced section (min.) 57
Length of grip section (min.) 50
Width of grip section (approx.) 20
Figure 3.4: Hardness specimen design and …show more content…
CADMAN-PL was software that used to optimize the cutting and machine parameter in order to maximize sheet utilization for laser cutting system. From the CADMAN-PL software, the machining programming was obtained. Then, the main program had been saved as O0030. Finally, the machining programming then been transferred to the laser cutting machine control panel by using diskette.
The machine that been used was Helius laser cutting machine, Figure3.5, with rated power of 3kW and carbon dioxide 〖(CO〗_2) laser beam. Detailed specifications of the laser cutting machine are as in Table 3.4 followed:
Table 3.4: Basic specifications of the LVD Helius Hybrid 2513 Laser Cutting Machine
Type of Specifications Descriptions
Model Helius Hybrid 2513 Laser Cutting …show more content…
For visual inspection, optical microscope (OM) and digital imaging and measurement microscope (DIM) been used in order to analyse the microstructure.
3.5.5.1 Destructive Test Tensile Test
Tensile test is the test to get several data in tensile property such as strength, ductility, toughness, elastic modulus and strain hardening. There were several procedures before tensile test been conducted. First of all, after finished with the welding and cutting process, the specimen was file using flat file in order to remove the burr. Then, the specimens’ thickness been measured by using the varnier calliper. Next, by using the surface grinding machine, the entire tensile specimen had been grind. This is to ensure the notch that appeared from welding process affected the specimens performance while tensile test. Again, after the grinding process, the new thickness of the specimen been measured. Then, start to setup the tensile test machine which used Universal Testing Machine (UTM) as shown in Figure 3.9. 100kN was set for the maximum load applied while 1mm/min was set for the speed.
Figure 3.9: Universal Testing Machine
First of all, the specimen designs have been drawn using the AutoCAD software. Two design have been drawn which were specimen for the tensile test and also specimen for the hardness test. Figure 3.3 and Table 3.3 shows the tensile specimen design with measurement. Figure 3.4 shows the design hardness specimen design and measurement.
Figure 3.3: Tensile specimen design
Table 3.3: Tensile specimen measurement
All values in mm Sheet type, 12.5mm Wide
Gauge length 50 ± 0.1
Width 12.5 ± 0.2
Fillet radius (min.) 12.5
Overall length (min.) 200
Length of reduced section (min.) 57
Length of grip section (min.) 50
Width of grip section (approx.) 20
Figure 3.4: Hardness specimen design and …show more content…
CADMAN-PL was software that used to optimize the cutting and machine parameter in order to maximize sheet utilization for laser cutting system. From the CADMAN-PL software, the machining programming was obtained. Then, the main program had been saved as O0030. Finally, the machining programming then been transferred to the laser cutting machine control panel by using diskette.
The machine that been used was Helius laser cutting machine, Figure3.5, with rated power of 3kW and carbon dioxide 〖(CO〗_2) laser beam. Detailed specifications of the laser cutting machine are as in Table 3.4 followed:
Table 3.4: Basic specifications of the LVD Helius Hybrid 2513 Laser Cutting Machine
Type of Specifications Descriptions
Model Helius Hybrid 2513 Laser Cutting …show more content…
For visual inspection, optical microscope (OM) and digital imaging and measurement microscope (DIM) been used in order to analyse the microstructure.
3.5.5.1 Destructive Test Tensile Test
Tensile test is the test to get several data in tensile property such as strength, ductility, toughness, elastic modulus and strain hardening. There were several procedures before tensile test been conducted. First of all, after finished with the welding and cutting process, the specimen was file using flat file in order to remove the burr. Then, the specimens’ thickness been measured by using the varnier calliper. Next, by using the surface grinding machine, the entire tensile specimen had been grind. This is to ensure the notch that appeared from welding process affected the specimens performance while tensile test. Again, after the grinding process, the new thickness of the specimen been measured. Then, start to setup the tensile test machine which used Universal Testing Machine (UTM) as shown in Figure 3.9. 100kN was set for the maximum load applied while 1mm/min was set for the speed.
Figure 3.9: Universal Testing Machine