Methods & Construction

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Methods: The project was conceived, analyzed, and designed at the Central Washington University Mechanical Engineering Technology department. Working within the constraints of our university resource, all the parts of the project will make in the machine room. By looking at Appendix B, all the pieces are shown.

Construction: Firstly, the base will be made from steel provided by Central Washington University Mechanical Engineering department. The milling machine will be the main machine for make the part. Cutting the 1018 steel into 5x5 inches square and the place the material on the table of the Bridgeport milling machine. Identify all the datum needed for the base. Using end mill cutting tool to cut the middle part of the material for reaching the final dimension and after that, also using the same tool to make all the radius or holes if needed on the bottom. Then, the die was created in the machine room and also from steel material. The guide (punch support box) will be designed to hold the die while punching the specimen. The punch support was the last to be created out of the steel material, the same as die and the base. All parts were made on the campus in the machine room under the professor’s supervision.

Description: The project creates because of the need to make tensile specimen tests in the lab for MET 351 and MET 426 courses. The problem is the reliability of getting the specimen cut both sides at the same time by having a way of making the sample get cut both sides at the same time and makes the process quick and easy on saving time.

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Manufacturing Issues: The main issues involved will be getting optimal punch design and the creation of the punch. The facilities that can use at this time do not have the knowledge or the capability to produce the punch. Another issue will be determining the dimension for the punch, die, and guide because the size needs to be adjustable when assembly the part. Last but not least, the area placing the spring to help the die return to the initial position after the process needs considering. Remember to contact whoever is in charge in the machine room at that time or contacting any industry representative for any issue and any information will be the best action to take. Seeking help or any advice from CWU’s professor or from your mentor for this kind of project will also be a good idea to do.

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