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.
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.”
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.
Within the manufacturing industry there are many sectors and a lot of terms to know and understand. Here we will define what some terms are and how they relate to manufacturing.
Manufacturing Automation: Is the use of technology and advanced machines to control the manufacturing of products. It may include the use of robotics or other equipment to aid in manufacturing.
Manufacturing Business: An organization that uses raw materials, parts, or other components to make products. To make the products they use automated systems and advanced equipment.
The community support of the technical education program at Eleva Strum High School is impressively large and there are several reasons why. The technical education program operates as a student-run business that fabricates and machines parts for customers. The business is called Cardinal Manufacturing. The money made by the business is used to buy raw materials, upgrade equipment, marketing, cover the operating costs, and to pay the student employees.
The CNC Machining industry has many specialized terms for tooling, machines, and other technology. Here is our list of things to know about machining with CNC equipment.
Blueprint Reading - The term blueprint reading means that someone interprets ideas that are on a drawing or print.
CAD/CAM Software – CAD is the acronym for Computer Aided Design. CAM is the acronym for Computer Aided Manufacturing. They are computer software that are used in the manufacturing industry.
Caliper – A measuring tool that is used to measure internal and/ or external dimensions on machined parts.
THE STEPS TO CAREER SUCCESS IN MACHINING
Get a Technical Degree – A solid educational foundation is a critical building block, you will make a lot more money in your career if you follow through with a Technical College education.
Serve a State Sponsored Apprenticeship – This is an excellent way to learn the skills of the trade and climb the pay scale also. It also will ensure that you are viewed as a professional in your career. By finishing an apprenticeship and becoming a journeyman, you will be put in a position to make a good wage for the rest of your career.
Never Stop Learning – Enroll in at least two specialized classes per year. It is an excellent way to build a great resume also, as it shows future employers that you are a dedicated career professional.
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.
I have designed and built a 3D printed clock that has over two dozen printed parts in it. My aspirations for doing this started when I bought mechanical watch movements and disassembled them to see how they work. The clock that I printed was inspired by a mechanical watch movement, but it is scaled up in size by six times.
I recently had an opportunity to visit the technical education department at the Eleva-Strum high school. While I was in the shop, there was an eighth-grade class working on manual milling projects, sheet metal projects, welding projects, and brazing projects. These projects that they were making teach the students the fundamental principles of manufacturing. With this class, the students spend six days in each subject area, then they switch to another project. They learn the basics like how to read a tape measure, and how to use a dial caliper.
This book is an insight into how to start a student-run business in your school district. It offers a look inside Cardinal Manufacturing in the Eleva-Strum School District. It defines what a student-run business is and lists the benefits of a program like this. Check it out!
I don’t know a single CNC machine shop that has an easy time hiring machinists, and would say they have enough well-qualified candidates. The fact is that there is more demand than supply, with not enough young people coming into the industry to fill the positions that are needed by machine shops today. On one hand, it's great news in general, that the demand for machinists is strong. Onshoring seems to be a longer-term trend now and the demand for machined parts in North America is strong, which is fantastic. The shadow side is that it’s tough to find machinists and most shops feel that pain, which inhibits their ability to grow at the pace they could theoretically if hiring was not a problem.
The workflow varies from shop to shop, but we will breakdown what it might take to process a CNC lathe part.
Recently I made a unique tool for showing science, technology, engineering, math, and manufacturing to students. It is a mechanical clock that has over two dozen 3D printed parts in it. In the presentation, students are truly engaged in learning more about the clock.
The concept of 3D printing anything and everything is a common thought amongst many individuals. While that hasn’t occurred and probably won’t for a long time, additive manufacturing is quickly becoming a need for many manufacturers, and it’s easy to understand why.
Although 3D printing originated over 40 years ago, at its inception, it was predominately used for prototyping. Today 3D printing is no longer utilized solely for consumer base purposes such as printing one-of-a-kind objects. It is now being used heavily in manufacturing settings to produce functional, large-scale, and end-use products.
Spartan Manufacturing in the School District of Superior Wisconsin is on a mission to expose students to industry and the trades in their area, and to better represent all the post high school options available to students at Superior High School. They want to remove the stigma of a two-year technical degree or an apprenticeship program.
The machining industry has thousands of CNC machine shops. Many of them struggle to stay profitable and deliver on their promises, and as a result, don’t grow as fast as they want to. A small number of shops are highly effective and grow faster than the rest and go on to have amazing results. I’ve talked with thousands of machine shops around the world and seen the common themes, and of course, with our own experience growing a shop from $0 to $12M in revenue, we have a few thoughts to share today. There are many more effective habits that are also important, but here are the most important habits we’ve seen over the years.