Machining.Blog® is a weekly blog focused on manufacturing career development. It features blog articles on the fundamentals of manufacturing for aspiring machinists. Our goal is to create an interest in manufacturing in the USA. Our writer Matthew Schowalter has worked in manufacturing for 24 years, and he covers the topics that matter to someone starting their career in manufacturing.
“The soft skills the machinist uses are the unseen tools in their box and can directly impact the success or failure of a dreamed after machining career.”
All in CNC Machining
Adapting to the worker shortage in manufacturing is difficult. Some shops may choose to search more aggressively for employees, while others might invest in technology that helps streamline the manufacturing processes. Then there are other manufacturing facilities that may buy another machine shop to gain capabilities. Those are all ways to overcome the worker shortage, but this article will focus on how to introduce manufacturing to the younger generation to help fix the worker shortage.
The machinist’s role is to setup advanced CNC machines and monitor the cutting conditions as the machine makes parts. As the machinist makes the parts, they inspect the parts with inspection tools and adjust the CNC parameters to achieve a conforming part that is within specifications.
There are many terms to know and understand in the machining industry. If you are just getting started in the industry, we have designed this list to better prepare you for the job.
Over the last 5 years, I have been observing the manufacturing industry worker shortage. The drastic change that I have seen over my 24-year career is alarming. While most industries change over time, I believe the changes that are happening to manufacturing are more than that. We are in a worker shortage crisis.
So, you have finished your education, either in high school or post-secondary trade school or both, and you are ready to find that machine shop meant for you. Many people do not take compatibility into consideration when completing their job search, but they should.
There are fifteen parameters to be considered when analyzing a new part to be made in a CNC lathe. While this may seem like a lot of considerations, if you examine a part properly you will be successful in its implementation. Here are the parameters to consider and the questions to ask:
When planning a CNC machining process there are many considerations and options to choose. From cutting tool selection to cutting parameters, the choices have a major effect on the end results. Here is what it might take to define a CNC toolpath:
The code to program a G3 counter-clockwise arc on a lathe is: G3X______ Z_______ R_______
I was provided with a few opportunities to talk about my STEM project and my career in several schools. It can be a very rewarding experience to a part of. I never saw myself as a speaker or presenter but with my deep knowledge in the subject, I developed a passion for sharing my experiences in manufacturing.
Knowing what features to inspect on machined parts, being aware of machining conditions, and what items and details to deburr can make all the difference in the success of the manufacturing project. By mastering these three items, it will set you apart as a great machinist. Let’s review in detail.
Each program has a program number, that should be different from other program numbers
Each line of code in a CNC program is called a “Block”. It contains G and M codes in it.
The block cannot have two M-codes in it
The ending of a Block has a End-of-Block symbol and it is a semi-colon. (Example: G1X.5; )
An endmill is a cutting tool that is typically used in a milling machine, or a mill/turn machine. They come in various diameters and lengths, to suit the needs of the user and the application. With that, they typically come in variations with 2-flutes, 3-flutes and 4 flutes. A 2-flute and 3-flute endmill is typically used in cutting aluminum. The 4-flute version is used in milling steel. The versions with 5 to 12 flutes are used in finish cutting steel.
We will cover the basics of Parameter programming. The concepts learned can be applied to many CNC projects and can be used in small shops and large shops alike. In G Code, macro programming variables are assigned values and when they are referenced and called they provide the last value that they were assigned. Some ways that variables can be used are for machining part families and for modifying work offsets and tooling offsets.
Your company tries SO hard to make everything perfect, but occasionally, something slips through the cracks, and you send some parts to a customer that get rejected. It’s not a fun situation, and it can be like a gut punch, depending on how expensive the mistake is. How you handle it from the customer’s perspective can make all the difference and even potentially turn a bad situation into a positive experience. Customers know that mistakes will happen, but how a vendor responds to them can put your relationship on the chopping block, or solidify your position in the partner category.
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