2nd ICAI 2022

International Conference on Automotive Industry 2022

Mladá Boleslav, Czech Republic

surfaces, Z = direction of laying of the layers). Also, ultimate tensile strength was evaluated on the boundary between deposition and tool material, which was chrome molybdenum–silicon–vanadium steel 1.2343.

Table 2: The mechanical properties Direction YS [MPa]

UTS [MPa]

A [%] 21±1.2

714±4

945±6 939±4 809±2 793±8

X Y Z

692±12

23.9±0.4 41.1±0.7

613±5

-

-

boundary

Source: author’s measurement data The measured hardness of the deposited NIMONIC was 260 HV10. 3.2 Trimming punch for piercing

The first application of Nimonic deposition was a trimming punch for piercing forgings (see Figure 5). The material of the punch was C45 and the functional edge was deposited from NIMONIC alloy. The diameter of 250mm and height of 350mm were punch dimensions.

Figure 5 Trimming punch with a deposited edge

Source: author’s photo Deposition parameters: SDM 800 module, • process time

3 hours,

• laser power

350 – 450 W,

• speed 850 mm/min, • amount of powder delivered 3 g / min, • shielding gas argon 5.0.

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