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
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.
A modern machinist typically progresses through five career stages: apprenticeship, journeyman machinist, specialization, senior or expert machinist, and leadership or mentorship roles. Advancement depends on hands-on experience, technical training, certifications, and continuous learning as machining technology evolves.
Many machinists prefer to stay on the shop floor, where their skill and craftsmanship transform raw material into precision parts. Remaining in a hands-on role does not limit career growth; you can continue to advance, increase your earnings, and gain respect without stepping away from the machines.
In the world of machining, precision isn’t just a goal, it’s the foundation of the craft. Whether you’re working in a high-tech CNC shop or tinkering in a home garage, the right tools are the difference between a flawless part and a costly mistake. But with so many gadgets and gizmos on the market, how do you know which ones are truly essential?
The shop floor hums before the sun is fully up. The air carries a faint scent of machine oil, and the rhythmic clatter of metal on metal is already underway. For a precision machinist, the day doesn’t just begin with a clock-in, it begins with a mindset: accuracy above all else.
Starting a machine shop can be an overwhelming task. There are many factors to consider while keeping it running efficiently. Besides the operational tasks, we have broken it down on what it might take to have a steady stream of work in your machine shop.
A cobot can add a lot of value to the manufacturing process in a machine shop. It can increase the productivity of the CNC machine, while also contributing to process accuracy and consistency. Cobots can be easy to program and are safe to use.
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; )
Precision machining is the process of removing material from the workpiece and holding a tight tolerance and finish on the part. The process of removing material from the workpiece is usually done with computer numerical controlled (CNC) machines.
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 I got started in machining, I really didn’t know what kind of tools to purchase. There is a vast variety of tooling to use in the shop, from inspection tools to hand tools. While having a limited budget, I had to choose to first buy the tools that I thought that I would use the most. This will vary from machine shop to machine shop often dependent on the type of work that the machinist does. Here is a list of some of the more popular choices for tools:
Cardinal Manufacturing in Strum Wisconsin is a school-based manufacturing program that operates both as a class and a business as well. The students gain real world life experiences while enrolled in the program. These experiences include problem solving and working in professional roles.
Machining and Tool & Die Making is what I have spent most of my career doing. There is something to be said for being able to turn a raw piece of material into a complex finished part. Through all my roles in the machine shop environment, I have identified a few soft skills, hard skills, and technical skills to have mastered if you want to be a great machinist.
CNC is an acronym for Computer Numerical Controlled. CNC is a type of machining practice. Besides CNC the other type of machining is manual machining. In CNC machining the workpiece is held in the machine and the CNC Programmer writes code so that the CNC machine can machine the workpiece. The CNC Machinist sets up and operates the CNC machine and oversees the machining process.
My first project in technical collage for tool and die making was to make 1-2-3 blocks. I milled the blocks oversize to leave stock for precision grinding. After drilling and tapping the holes in the blocks, we case hardened them. The last process was to precision grind them to size. The grinding process involved both grinding to blocks to size and to a squareness tolerance.
