Graduate Thesis Or Dissertation
 

An experimental study of the fluid mechanics of filling a small part of modular mold

Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/vx021k41x

Descriptions

Attribute NameValues
Creator
Abstract
  • Investment casting has been an important form of metal casting for many years, but little is understood about the fluid flows that occur during mold filling. A key to quality castings is the understanding and control of the fluid flows that are present when the mold is filled with molten metal. It is thought that with a greater understanding of these flows, better control can be maintained and the end result will be a more efficient process that produces better parts. The subject of this thesis is the experimental study of the fluid mechanics of filling a small part mold. The experiments included tests on different downsprues, wells, runners, and chokes. The collected data were analyzed and the following recommendations were made: The shape of the downsprue, whether tapered or straight, does not seem to be important as long as the minimum area is small enough to provide the required choking. The use of a well has contributed to the smoothness of a flow, but its effect can be provided instead by chokes. Overflow chokes in the horizontal portions of the mold seem to be more effective than choking in the downsprue, but the use of both improves the flow. While runner extensions and underflow chokes might help to reduce impurities, they do little to help the smoothness of the flow.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using ScandAll PRO 1.8.1 on a Fi-6770A in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • Best scan available for photographs. Original is a photocopy.

Relationships

Parents:

This work has no parents.

In Collection:

Items

Thumbnail Title Date Uploaded Visibility Actions
file details MillerMarkW1991.pdf 2017-10-25 Public Download