11:30 a.m. - 12:00 p.m.
Paper No. 11
Institutionalizing The Process Stephan J. Hoppe, Guardian Software Systems Jan Holland, Designed Precision Castings in·sti·tu·tion·al·ize: Establish (typically a practice or activity) as a convention or norm in an organization or culture. This is the goal set by Designed Precision Castings, Inc. of Brampton, Ontario, clearly establishing, and following as set of processes and procedures that would insure a predictable outcome.
The journey
began in April of 2013, and has been both a struggle and at the same time rewarding. Jan Holland, chairman & CEO will walk you thru the last 18 months outlining the progress made, as well as projecting the challenges ahead of them in the future. Stephan J. Hoppe, president & CEO of Guardian Software Systems, will also be available to answer specific questions regarding techniques used to implement these practices.
12:00 p.m. - 1:00 p.m. 1:00 p.m. - 1:30 p.m. LUNCH Paper No. 12
Energy Reclaiming System Michael Kügelgen, MK Technology Steam autoclaves are normally electrically heated and therefore extremely energy consuming. After each process, the hot steam will be blown without further use out of the roof and the hot waste water will run into a buffer-system, where additional cold water is needed to cool it down. There is no further use for the main process. To lower the high energy costs, MK Technology developed a special energy reclaiming system, which works like following: released hot steam and waste water from the autoclave is guided through a heat exchange unit. This primary cycle works with standard water and leads to an isolated hot water tank. On the secondary side the fresh feed water will be heated up to max. 85°C and runs through the pressure pump into the steam generator.
The temperature gap of around 70°C
will help to save energy up to 30%, depending of the usage on the autoclave and daily working hours. The main advantages are: 1. Reduced operational costs 2. Very stable process with reduced temperature peaks 3. Higher productivity due to less waiting time between the cycles
1:30 p.m. - 2:00 p.m. Paper No. 13
Investment Casting at Virginia Tech Alan P. Druschitz, Virginia Tech Investment casting is now an integral part of the metal casting curriculum at Virginia Tech. Expendable pattern making (preparation of silicone rubber molds for wax patterns & 3D printing of polymers), investing (prime & back-up), wax/polymer burn-out, mold pre- heating, pouring and break-out are practiced in both the elementary and advanced metal casting laboratories.
This paper discusses
the specific processes being taught and practiced at the Kroehling Advanced Materials Foundry at Virginia Tech and highlights a variety of investment castings produced by Virginia Tech students from the art, architecture and engineering colleges.
WEDNESDAY, OCTOBER 8, 2014 8:00 a.m. - 8:15 a.m.
WELCOME INTRODUCTION & INSTITUTE REPORT
Spring Management Meeting Review and Other ICI Activities Joseph E. Fritz, Investment Casting Institute
8:15 a.m. - 8:45 a.m. Paper No. 15
Shell Materials and Casting Methods for Titanium Casting Tom Branscomb, Buntrock Industries Casting of titanium alloys can be done with different primary, intermediate, and backup layer shell materials. Usually, the tradeoff is between material cost and as cast part quality. This paper discusses the advantages and disadvantages of various shell materials for casting titanium alloys. Foundry methods and equipment are also discussed because these are also important in the casting of titanium. A comparison of alpha case depth with various shell systems is given.
8:45 a.m. - 9:15 a.m. Paper No. 16
Dimensional Stability of Ceramic Shell Mold Systems Thomas Krumrei / Danilo Frulli, Imerys Dimensional stability of the shell mold is a key factor to meet the requirements of dimensional accuracy of the castings. Additionally to thermal expansion of the ceramic raw materials, changes in the mould dimensions may occur due to distortions during the pre-firing of the moulds or because of deformation under the weight load of metal at high temperatures. Fused minerals provide not only the necessary refractoriness and resistance against attack by the molten alloy but can also be used to build shells with exceptional hot dimensional stability, for instance to withstand high temperatures for a long time in SX and DS castings or to allow tightest dimensional control for the production of turbo charger wheels. This paper discusses thermal expansion, hot dimensional stability, and shell removal properties of shell systems based on fused minerals.
2:00 p.m. - 2:30 p.m.
Paper No. 14
Streamlining the Finishing Area Stephen Murtagh, A.W. Bell Todd Peterson, TPM, Inc. Gate removal from investment castings continues to be a labor intensive operation requiring a skilled employee in order to result in a quality casting. By working closely with A.W. Bell, Texas Precision Metalcraft was able to address these concerns on a family of parts that run in large quantities. The solution provided by A.W. Bell has given TPM, Inc. increased flexibility in the finishing department while also improving the quality of the castings produced.
2:30 p.m. - 6:00 p.m. 6:30 p.m. - 8:00 p.m.
EXPO RECEPTION
October 2014 ❘ 27 ®
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
