Friday, April 26, 2013

Independent Component 2

a) Statement saying: “I, Ariana King, affirm that I completed my independent component which represents 30 hours of work.”
(b) Cite your source regarding who or what article or book helped you complete the independent component
For my second independent component, I spent 30 hours doing basic quality checks on parts. The tools that i frequently used were calipers and small hand CMMs. I would check the part as it was a chunk of metal and then after it was cut. I only did basic size and depth measurements.


3/02/13 8:00 A.M.-3:00 P.M
Learned the basics of what I should be doing when measuring parts. Calipers are used for length and width, and depending on how big or small the cut is, depth. These are mostly used for general estimates and help provide a reference more than actually measure. The actual CMMs do the accurate measuring and i would watch the machines to make sure they were running smoothly and would record any error the machine detected. While not exactly slow, the process isn't quick either which is why only a few out of a batch was tested at a time,

3/09/13 8:00 A.M.- 1:00 P.M.
Tested to see if work holdings were keeping the metal at the required depth. This manual CMM was set to the desired depth previously and was moved to where a placeholder block was being held. The CMM was placed closer and closer to the block till it touched and if programmed correctly, hit zero on the dial.

3/16/13 8:00 A.M.-4:00 P.M.
Rather slow day as I pretty much measured with calipers and the manual CMM as required. It wasn't that not many parts were made at the shop that day, but rather they took a very long time to make and were full of details. I wasn't able to use the actual CMM at the shop due to the fact they needed to be as fast and accurate as they could since the parts were taking so long. I simply did the easy "grunt work" part of measurement. Since I couldn't take a picture of the part or machine as it was a prototype, I decided to examine the warnings of the machines while i was waiting for the parts to finish.

The blood was a nice touch.

4/06/13 8:00 A.M.-1:00 P.M.
Same generic measuring. By now i was getting faster at it, being able to produce results fast without screwing up on a measurement. (My work is always checked by someone in quality.) I also helped clean up the shop that day, by taking out bins of metal chips and wiping the floor and tables free of coolant.

4/13/13 8:00 A.M.-1:00 P.M.
Did the last few hours with some calipers and examined "scrapped" parts in the CMM. Also painted red rejected parts where the mistakes were made to show the programmers where things went wrong.


APPLIED
How did the component help you answer your EQ or support one or more of your answers. Please include specific examples to illustrate how it helped.

This helped me answer my EQ by letting me both experience quality work and cleanliness. While I was mostly focused on measurement checks, Briefly I did do some cleaning one day, and I always had to make sure i put everything back right where i got it from that way other people could use it when needed. While this did teach me not to cheat with measurement, it mostly provided proof for my 3rd answer which is to have a clean shop floor. When the floor would start to get too dirty, i would notice that my feet would either be slippery or stuck based on what coolant was used and metal chips would embed themselves in my shoe. Whenever something I, or someone else was using was moved out of it's intended place, no one would know where it was and productivity wouldslow down.

Tuesday, March 26, 2013

Current Mentorship Hours


1/12/13 8:00 A.M.-1:12 P.M.: Programmed part number 53002668
8:00-10:00 Created a solid model from a blueprint supplied by a customer
10:00-11:45 Generated tool paths in MasterCam
11:45- 1:12 Created set-up sheets for operator
2/3/13 7:43 A.M.-1:00 P.M.: Set up and first articled part number 53002682


2/17/13 8:15 A.M.-2:30 P.M.:Programmed part numbers 0507222 and 69000629

2/23/13 8:00 A.M.-1:30 P.M.: Designed and programmed fixture for vacuum base

3/3/13 9:00 A.M. 1:15 P.M.: set up 1st articled part number 0511425

3/9/13 8:00 A.M.- 2:00 P.M.: Designed fixtures part number "food tray"

WB

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Tuesday, March 5, 2013

Blog 19

1. Effective User of Technology
2. I have been further understanding a program called MasterCAM which is used in the CNC machining industry. I have also been able to work with some quality testing machines which were machines I had never used before.
3. Finished box and lid from independent component 1:






Wednesday, February 20, 2013

20 Questions


1. How can a machine programmer best produce quality airplane parts in the aerospace industry?

2. How do different types of metal effect the way you program a specific airplane part?

3. Why is it so important to track a heat lot on material used for these parts?

4. What types of coatings and paints are commonly used and how does this affect close tolerances?

5. What are some of the tolerancing differences between commercial airplane parts and government airplane parts?

6. What other outside processes are most commonly used and why can't we accomplish those with a CNC machine?

7. How do you determine what goes on a CNC mill and what goes on a CNC lathe?

8. On a part that has multiple operations, how is quality sustained throughout each operation?

9. What is the process used when quoting a new job? 

10. What are some examples of various types of workholding?

11. What is the protocol when a part has changed revision?

12. How do you determine what is the most efficient machine, be it a mill or a lathe, to make a specific part?

13. Some metals can be cut without the use of coolant. What are those metals and what kind of tools are used to cut them?

14. When making a set up sheet for the machinist to use, what kind of information is important to have on it?

15. What are some programming techniques used to achieve a good surface finish? How do these techniques differ from material to material?

16. When running a job, what is more important? Tool life, or run time?

17. All these cutting tools are extremely sharp and when cutting metal, sharp chips are flying out at high speeds. Also, the part itself has corners that are razor sharp. How can a program minimize work related accidents?

18. How important is it to have a clean and tidy shop floor? How do you sustain a tidy shop floor? How does this tie into making quality parts?

19. In what ways does production work with quality from start to finish on each job?

20. What is the best way to learn CNC programming using a CAM system?

Tuesday, February 19, 2013

3rd Interview Questions

1. How can a machine programmer best produce quality airplane parts in the aerospace industry?


2.How many CMM machines is average to have in a standard Machine Shop?


3. What are the other ways to ensure quality other than a CMM machine?


4.What percent error is allowed for a part to be "okayed"?


5.What is done with parts that aren't approved?


6. What are ways to test a part for stress?


7. What type of debarring method do you use?


8. What does debarring do?


9. Does type of coolant affect quality?


10. Is every part checked, or only a sample?