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Machinists and Tool Programmers Career Information

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• Significant Points
• Nature of the Work
• Working Conditions
• Employment
• Training, Qualifications, Adv.

• Job Outlook
• Earnings
• Related Occupations
• Sources of Additional Information

Significant Points

·            Machinists learn in apprenticeship programs, informally on the job, and in high schools, vocational schools, or community or technical colleges.

·            Many entrants previously have worked as machine setters, operators, or tenders.

·            Job opportunities are expected to be excellent.

Nature of the Work

Machinists use machine tools, such as lathes, milling machines, and spindles, to produce precision metal parts. Although they may produce large quantities of one part, precision machinists often produce small batches or one-of-a-kind items. They use their knowledge of the working properties of metals and their skill with machine tools to plan and carry out the operations needed to make machined products that meet precise specifications.

Before they machine a part, machinists must carefully plan and prepare the operation. These workers first review blueprints or written specifications for a job. Next, they calculate where to cut or bore into the workpiece (the piece of metal that is being shaped), how fast to feed the metal into the machine, and how much metal to remove. They then select tools and materials for the job, plan the sequence of cutting and finishing operations, and mark the metal stock to show where cuts should be made.

After this layout work is completed, machinists perform the necessary machining operations. They position the metal stock on the machine tool—spindle, drill press, lathe, milling machine, or other—set the controls, and make the cuts. During the machining process, they must constantly monitor the feed and speed of the machine. Machinists also ensure that the workpiece is being properly lubricated and cooled, because the machining of metal products generates a significant amount of heat. The temperature of the workpiece is a key concern because most metals expand when heated; machinists must adjust the size of their cuts relative to the temperature. Some rarer, but increasingly popular, metals, such as titanium, are machined at extremely high temperatures. Machinists also adjust cutting speeds to compensate for harmonic vibrations, which can decrease the accuracy of cuts, particularly on newer high-speed spindles and lathes.

Some machinists, often called production machinists, may produce large quantities of one part, especially parts requiring the use of complex operations and great precision. Production machinists work with complex computer numerically controlled (CNC) cutting machines. Frequently, machinists work with computer-control programmers to determine how the automated equipment will cut a part.  The programmer determines the path of the cut, and the machinist determines the type of cutting tool, the speed of the cutting tool, and the feed rate. After the production process is designed, relatively simple and repetitive operations normally are performed by machine setters, operators, and tenders.  Other machinists do maintenance work—repairing or making new parts for existing machinery. To repair a broken part, maintenance machinists may refer to blueprints and perform the same machining operations that were needed to create the original part.

Working Conditions

Most machine shops of today are relatively clean, well lit, and ventilated. Many computer-controlled machines are totally enclosed, minimizing the exposure of workers to noise, dust, and the lubricants used to cool workpieces during machining. Nevertheless, working around machine tools presents certain dangers, and workers must follow safety precautions. Machinists wear protective equipment such as safety glasses to shield against bits of flying metal and earplugs to dampen machinery noise. They also must exercise caution when handling hazardous coolants and lubricants. The job requires stamina, because machinists stand most of the day and, at times, may need to lift moderately heavy workpieces.

Most machinists work a 40-hour week. Evening and weekend shifts are becoming more common as companies justify investments in more expensive machinery by extending hours of operation. Overtime is common during peak production periods.

Employment

Machinists held about 430,000 jobs in 2009. Most machinists work in small machining shops or in manufacturing firms that produce durable goods, such as metalworking and industrial machinery, aircraft, or motor vehicles. Maintenance machinists work in most industries that use production machinery. Although machinists work in all parts of the country, jobs are most plentiful in the Northeast, Midwest, and West, where manufacturing is concentrated.

Training, Qualifications, Adv.

Despite projected slower-than-average employment growth, job opportunities for machinists should continue to be excellent. Many young people with the necessary educational and personal qualifications needed to obtain machining skills may prefer to attend college or may not wish to enter production-related occupations. Therefore, the number of workers obtaining the skills and knowledge necessary to fill machinist jobs is expected to be less than the number of job openings arising each year from employment growth and from the need to replace experienced machinists who transfer to other occupations or retire.

Employment of machinists is expected to grow more slowly than the average for all occupations over the 2000-10 period because of rising productivity among machinists. Productivity gains are resulting from the expanded use of computer-controlled machine tools and new technologies, such as high-speed machining, which reduce the time required for machining operations. This allows fewer machinists to accomplish the same amount of work previously performed by more workers. Technology is not expected to affect the employment of machinists as significantly as that of most other production occupations, however, because many of the unique operations performed by machinists cannot be efficiently automated. Due to modern production techniques, employers prefer workers, such as machinists, who have a wide range of skills and are capable of performing almost any task in a machine shop. In addition, firms are likely to retain their most skilled workers to operate and maintain expensive new machinery.

Employment levels in this occupation are influenced by economic cycles—as the demand for machined goods falls, machinists involved in production may be laid off or forced to work fewer hours. Employment of machinists involved in plant maintenance, however, often is more stable because proper maintenance and repair of costly equipment remain vital concerns, even when production levels fall.

Job Outlook

Despite projected slower-than-average employment growth, job opportunities for machinists should continue to be excellent. Many young people with the necessary educational and personal qualifications needed to obtain machining skills may prefer to attend college or may not wish to enter production-related occupations. Therefore, the number of workers obtaining the skills and knowledge necessary to fill machinist jobs is expected to be less than the number of job openings arising each year from employment growth and from the need to replace experienced machinists who transfer to other occupations or retire.

Employment of machinists is expected to grow more slowly than the average for all occupations over the 2000-10 period because of rising productivity among machinists. Productivity gains are resulting from the expanded use of computer-controlled machine tools and new technologies, such as high-speed machining, which reduce the time required for machining operations. This allows fewer machinists to accomplish the same amount of work previously performed by more workers. Technology is not expected to affect the employment of machinists as significantly as that of most other production occupations, however, because many of the unique operations performed by machinists cannot be efficiently automated. Due to modern production techniques, employers prefer workers, such as machinists, who have a wide range of skills and are capable of performing almost any task in a machine shop. In addition, firms are likely to retain their most skilled workers to operate and maintain expensive new machinery.

Employment levels in this occupation are influenced by economic cycles—as the demand for machined goods falls, machinists involved in production may be laid off or forced to work fewer hours. Employment of machinists involved in plant maintenance, however, often is more stable because proper maintenance and repair of costly equipment remain vital concerns, even when production levels fall.

Earnings

Median hourly earnings of machinists were $14.78 in 2009. The middle 50 percent earned between $11.43 and $18.39. The lowest 10 percent earned less than $9.01, while the top 10 percent earned more than $21.84. Median hourly earnings in the manufacturing industries employing the largest number of machinists in 2009 were:

Aircraft and parts           $16.86

Metalworking machinery             15.89   

Industrial machinery, not elsewhere classified       14.66   

Motor vehicles and equipment     14.24   

Personnel supply services          8.80     

Related Occupations

Occupations most closely related to that of machinist are other machining occupations. These include tool and die makers; machine setters, operators, and tenders—metal and plastic; and computer-control programmers and operators. Another occupation that requires precision and skill in working with metal is welding, soldering, and brazing workers.

Sources of Additional Information

For general information about machinists, contact:

• Precision Machine Products Association, 6700 West Snowville Rd., Brecksville, OH 44141-3292. Internet: http://www.pmpa.org

For a list of training centers and apprenticeship programs, contact:

• National Tooling and Machining Association, 9300 Livingston Rd., Fort Washington, MD 20744. Internet: http://www.ntma.org

For general occupational information and a list of training programs, contact:

• Precision Metalforming Association Educational Foundation, 6363 Oak Tree Blvd., Independence, OH 44131-2500. Internet: http://www.pmaef.org