Selective laser melting of Al7050 powder: Melting mode transition and comparison of the characteristics between the keyhole and conduction mode

By Ting Qi, Haihong Zhu, Hu Zhang, Jie Yin, L. Ke, Xiaoyan Zeng. 2017

317 citations recorded by the source corpus.

Subfields: Mechanical Engineering, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/e2a2b07663084fb739394e7c35eab14d94bf4b4a

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Mechanical Engineering

1. J. P. Oliveira
2. Telmo G. Santos
3. R. Miranda
4. Sankhya Mohanty
5. I. Koutiri
6. P. Howes
7. Han Huang
8. G. Gibbons

In Mechanics of Materials

1. R. Miranda
2. J. P. Oliveira
3. Mingxing Zhang
4. Shoufeng Yang
5. Telmo G. Santos
6. H. Hallberg

Citations in the corpus

• A review of Laser Powder Bed Fusion Additive Manufacturing of aluminium alloys: Microstructure and properties (2021, background): “[163] have studied 7050 alloy by altering three types of melt pool: goblet,”
• Optimization and comparison of porosity rate measurement methods of Selective Laser Melted metallic parts (2019, methodology): “Previous works [24,25] considered the Width-to-Depth Ratio of fusion beads (WDR=W/e) to distinguish conduction mode welds (for WDR > 1) from key-hole mode welds (WDR< <1).”
• A Novel Strategy to Additively Manufacture 7075 Aluminium Alloy With Selective Laser Melting (2021, background): “Moreover, previous studies [9, 13, 14] have found that the dependence of crack fraction on SLM processing parameters is commonly contrary to the porosity formation.”
• Keyhole-induced porosities in Laser-based Powder Bed Fusion (L-PBF) of Ti6Al4V: High-fidelity modelling and experimental validation (2019, background): “As mentioned earlier, the keyhole represents a highly unstable regime [48].”
• Revisiting fundamental welding concepts to improve additive manufacturing: From theory to practice (2020, methodology): “[150], on selective laser melting of AA 7050 alloy, for a wide range of scanning speeds (from 150 to 750mm/s) cracking was always observed, even though the range of scanning speeds used allowed to transition from conduction to keyhole.”
• Towards a high strength aluminium alloy development methodology for selective laser melting (2019, background): “Good laser processability can be demonstrated by the absence of the solidification cracks, distinguishing from the traditional high strength Al alloys after laser processing [20,21].”