Presentation Q1

Inspection-GD&T, CMM, Dimensional Inspection

The first thing we learned about in unit 1 was inspection and how important it is to the workplace. Inspection is important because they check everyone else's work to be sure it’s up to the PCM's and customers standard. They use GD&T to help, GD&T is a collection of symbols to help identify different parts when inspecting, it's a machinist language. GD&T really helps to be able to understand how machinists talk. I went down to inspection for a hands on approach and worked with Brian and Shawn. Shawn showed me the blueprints and really helped me understand the importance of inspection and how precise you need to be when using calipers, micrometers, dial indicator and when looking at PCM's.

Inspection/GD&T page: https://sites.google.com/view/sshropshire/9-17-24r

Manual Machining- Manual Mill and Manual Lathe/challenges

In the manual machining unit I watched many videos to get a basic understanding of the machines and safety regarding them, after I had a basic understanding of them I went out with Logan to do the manual mill challenge. For this challenge we had Kong help us operate the machines to be sure we didn't break anything, we squared the carriage and vices and made a cuts to square an aluminum block. For the manual lathe challenge it was me and logan down with Jacob a CNC lead, Jacob helped us put our parts in a 3 jaw chuck, we made some cuts to our stock to make it more circular and switched it to a 4 Jaw chuck, Jacob squared it away in the 4 jaw because it would've taken a lot longer if we did it. We made a few finishing cuts and had ourselves a finished cylinder.

Manual Mill page: https://sites.google.com/view/sshropshire/10-9-24

Manual Lathe page: https://sites.google.com/view/sshropshire/10-14-24

2D Machining- WaterJet, Fusion Challenge

For the 2D machining unit we once again watched videos to gain understanding before going out to work on the machines. From these videos I learned waterjet basics and safety. I worked with Layth and our mentor Tera on the waterjet. I quite liked the waterjet portion of unit 1 it was fun to work with, learn about and see all the kinks that Tera has to workout a lot of the time. We peeled plastic off of sheets we were loading in, loaded said sheets, homed our machine and made sure to use the pin-gauge every time to insure we weren't going to hit the sides of the machine. Then we went to the computer and loaded our program to run, we changed things such as the material we're using, we made sure the heat lot numbers aligned, and triple checked our work order before startng the program. We also reamed holes and deburred some parts. For deburring we used a variety of tools such as a 90, whirrly tool, a DA and sandpaper. For our waterjet challenge we had to design a flatpack in fusion 360 that would be able to be cut out on the waterjet not that we were actually cutting them out but if we were they'd work. I made a 2D AMLA puzzle, it’s a 12x12 and has 20 pieces total.

WaterJet page: https://sites.google.com/view/sshropshire/10-2324-24

FlatPack design page: https://sites.google.com/view/sshropshire/102824

3 axis CNC machining- 3Axis unit and challenge

In the 3 Axis CNC portion I was on the floor with mentors. But before I went to the floor I watched many videos to once again get an unsderstanding of the machines befre using them, the videos taught me about maintenance, safety and macihine basics. When we got to the shop floor for the firsrt day, I started with Brittany. She taught me more about the basics and let me get hands-on and practice these things, such as locking and unlocking the spindle, how to get code from the computer onto the machine, how to use MDI and rotate tools. The next day I was with kyle and he taught me how to make our own tools, using both collet style and shrink fit, we also discused abreviations such as OOH for out of holder and LOC for length of cut. Day 3 I was with Brittany again, we went over machine/tool offsets which included learning how to use an edgefinder and to use a 2x4x6 block and a piece of paper to do tool offsets. For the last day on the floor me and Nathan were with Brittany for maintinence day. We swept chips into the conveyer, changed out a coolant tank and cleaned the top and inside of a machine, we also learned how often to do each maintenance task. For my challenge I made a smiley face doorstop out of a 6x3.5x2.5 block of alluminum. My doorstop was a 3x3 with a 10 degree slant across the top, the eyes have a .63 diameter, the nose and mouth have .25 radius'. After reviewing with Jacob and getting my G-code squared away, I went down and got it cut out, after it was cut I printed my blueprint and measured everything out to make sure I was in tolerence, then I brought it to Brian for a first part check. I ended up being in tolerance for most of it except the mouth and nose, the distances from top to bottom of them were a bit off.

3Axis unit page: https://sites.google.com/view/sshropshire/103024-11424

3Axis challenge page: https://sites.google.com/view/sshropshire/3axis-challenge

Page updated

Google Sites

Report abuse