This study aims to determine the effect of the thickness of the Layer and Exposure Time on the strength, impact toughness applied to the prototype of the reduction gear post, test specimens made using SLA DLP 3D Printer with 3D UV Resin Anycubic material and referring to ASTM D-256. In this research, creating objects using SLA DLP 3D Printer uses CAD data which is then converted into G-Code with Creation Workshop software. Factors investigated were layer thickness, exposure time with response impact strength using Charpy method of test specimens. The test result data were analyzed using ANOVA with type 2 factorial level design, 2 factorial interaction design (2FI), and replication 3 modelled by Design-Expert software. The results of the analysis revealed that the main factor that had the most influence on the impact strength of the test specimens was the layer Thickness factor with a percentage contribution of 52%, while the interaction between Layer Thickness and Exposure Time contributed 6%. Based on impact testing with a layer thickness parameter of 0.05 millimetres and an Exposure Time of 15 seconds, the optimal results are an average impact price of the Charpy method 0.005600 Joule/mm2.
Powder metallurgy is a metal working technology in which parts or components are produced from metal powders. The working process is that the metal powder is pressed into the desired shape. The formation of technical materials using powder from machining is still being developed. In this research, the writer will conduct research using the powder from the results of the sensing to be used as a component of machinery or other forms. In this research, the stages of resistance include: powder drying, mixing, sieving, forming (packing), and heating (Sinterung). The compacting process is carried out with a compacting pressure of 20 KN, 25 KN and 30 KN, and by heating in an electric kitchen with a temperature of 1000•C with 1 hour of detention and cooling for 24 hours in the kitchen. the compacting pressure (P) of 20 KN of 83.19 kg / mm2 experienced an increase in hardness of 4.18% for the 25 KN compacting pressure and for the 30 KN compacting pressure, a significant increase in the compacting pressure (P) of 20 KN which was 94, 41 or 11.88%. The hardness of the test specimen decreased to the original material (Steel) of the test specimen, namely 110.62 kg / mm2, this could occur due to the influence of the mixture of powder and material from grinding stone. 94.41 kg / mm2, this occurs because of the mixing of the original material with the grinding stone during the grinding process.
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