TUESDAY, NOVEMBER 9, 2021
8:00 a.m. - 8:05 a.m. WELCOME INTRODUCTION 8:05 a.m. - 8:45 a.m.
Paper No. 9: Development of Investment Casting Shells Based on Calcia Stabilised Zirconia for Ti-6AI-4V Angelika Priese, Imerys Fused Minerals Murg GmgH This study describes the development of an investment casting mould with calcia stabilised zirconia /ammonium zirconium carbonate as face coat for Ti-6Al-4V. The slurry stability was evaluated by aging studies measuring the pH, Zahn cup viscosity and plate weight. Full investment casting shells were built up and tested for MOR and with dilatometry for the softening point. Finally, casting trials were made and alpha case formation was assessed by measuring the hardness and chemical composition with ICP-OES and hot gas extraction. The study provides recommendations on the preparation of the zirconia slurry to improve quality and reduce alpha case formation.
8:45 a.m. - 9:25 a.m.
Paper No. 10: Process Control Standards for Investment Castings Nip Singh, ICI Director, S&A Consulting Group As Process Control is very critical to our manufacturing of Investment Castings worldwide, we would like to involve all sectors of IC in all countries. This panel will present the current status of the Process Control Standards (PCS) and also will detail how casters can start using this ICI benefit. The task force on PCS, a subgroup under Education Committee has made considerable strides since our last presentation at ICI 67th Conference in 2020. Training program for surveyors (internal/external) certification was developed by the core team, tested, and now being uploaded on Tune’Em platform for certification. This training program was considered very crucial and necessary for the success of PCS acceptance from foundries. A survey operating team was split out from core PCS team for streamlining of day-to-day operation of PCS. The details of operating and continued core team functions will be detailed by the panel.
9:25 a.m. - 10:00 a.m. Paper No. 11: Steel Performance Initiative (SPI) and Digital Innovative Design (DID) Raymond Monroe, Steel Founders’ Society of America, Booth 512 National security and advanced manufacturing depend on a robust specialty steel industry. Steel Founders’ Society of America’s (SFSA) has collaborated with the Defense Logistics Agency (DLA) to organize efforts to invest in steel production and performance. This effort is intended to improve the supply chain capability and provide the most capable steel parts for commercial and national security using technology developed in partnership with the leading universities. This presentation will show DID successes and SPI strategic research objectives, including alloy and modelling capability development, hybrid steel components, and automation.
October 2021 ❘ 23 ®
10:00 a.m. - 10:15 a.m. COFFEE BREAK 10:15 a.m. - 10:55 a.m.
Paper No. 12: Implementing Best Practices & Reducing Process Costs for Refractory Use in Investment Casting & Alloy Production Foundries Phil Geers, Blasch Precision Ceramics, Booth 316 ICI member foundries, which include Investment Casting and Alloy production companies, are constantly working to preserve and improve the quality of their product. While they do this, they are challenged with tight deadlines, all while working with the available resources on hand. Because of these demands, best practices for refractory linings can be overlooked and in the worst case ignored by the foundry manager or plant engineer. The truth is the time required to implement best practices for foundry refractories is small, but it does require that standards and procedures are followed. Any time required for these best practices are easily recouped by achieving longer refractory life, more consistent heats, reductions down time and a safer foundry environment. In this paper, we will review best practices for foundry refractories (from simple to complex) that can be utilized immediately to improve refractory life and reduce cost.
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58
