A Study on Strengthening Mechanical Properties of a Punch Mold for Cutting by Using an HWS Powder Material and a DED Semi-AM Method of Metal 3D Printing
| Autor: | Soon-Yong Yang, Seong-Woong Choi, Young-Jin Yum, Yong-Seok Kim |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
semi-additive manufacturing (semi-AM)
Toughness Materials science 3D printing 02 engineering and technology Hot stamping medicine.disease_cause 01 natural sciences Industrial and Manufacturing Engineering punch mold strengthening Mold 0103 physical sciences medicine Composite material piercing and trimming punch Porosity Particle density Punching lcsh:T58.7-58.8 010302 applied physics high wear resistance steel (HWS) business.industry 020502 materials Mechanical Engineering Compressive strength 0205 materials engineering Mechanics of Materials metal 3D printing directed energy deposition (DED) HWS powder material lcsh:Production capacity. Manufacturing capacity business |
| Zdroj: | Journal of Manufacturing and Materials Processing Volume 4 Issue 4 Journal of Manufacturing and Materials Processing, Vol 4, Iss 98, p 98 (2020) |
| ISSN: | 2504-4494 |
| DOI: | 10.3390/jmmp4040098 |
| Popis: | The post-processing (punching or trimming) of high-strength parts reinforced by hot stamping requires punch molds with improved mechanical properties in hardness, resistance to wear, and toughness. In this study, a semi-additive manufacturing (semi-AM) method of heterogeneous materials was proposed to strengthen these properties using high wear resistance steel (HWS) powder and directed energy deposition (DED) technology. To verify these mechanical properties as a material for the punch mold for cutting, specimens were prepared and tested by a semi-AM method of heterogeneous material. The test results of the HWS additive material by the semi-AM method proposed in this study are as follows: the hardness was 60.59&ndash 62.0 HRc, which was like the Bulk D2 specimen. The wear resistance was about 4.2 times compared to that of the D2 specimen the toughness was about 4.0 times that of the bulk D2 specimen the compressive strength was about 1.45 times that of the bulk D2 specimen the true density showed 100% with no porosity. Moreover, the absorption energy was 59.0 J in a multi-semi-AM specimen of heterogeneous materials having an intermediate buffer layer (P21 powder material). The semi-AM method of heterogeneous materials presented in this study could be applied as a method to strengthen the punch mold for cutting. In addition, the multi-semi-AM method of heterogeneous materials will be able to control the mechanical properties of the additive material. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|