Possibilities of Repairing Functional Surfaces of Molds for Injecting Al Alloys Using Manual GTAW Cladding
نویسندگان
چکیده
The paper presents the results of research that is focused on renovation molds for high-pressure aluminum casting. An analysis worn was carried out after they were removed from operator. extent and mechanism wear determined. GTAW (Gas tungsten arc welding) technology chosen shaped parts molds. layers realized with four types additional materials Cronitex RC 44, UTP A 73 G 3, 673 Dievar® TIG. quality coatings assessed by destructive as well non-destructive tests. mixing build-up base material determined basis structural analyses. hardness cladding a metallographic cross crowns Vickers method. resistance tested complete immersion in melt AlSi8Cu3 alloy which maintained at temperature 680 ± 20 °C laboratory furnace 120 300 min. tribological properties produced deposits using ball-on-disc dry Based experiments out, it possible to recommend additive 3 restoration functional surfaces injection Al alloys patterns created have shown best terms their melt, dominant degradation factor limiting life
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ژورنال
عنوان ژورنال: Metals
سال: 2022
ISSN: ['2075-4701']
DOI: https://doi.org/10.3390/met12111781