Tag : cnc manufacturing

high speed machining

What Is High-Speed Machining?

When referring to CNC machine tools, the term high speed machining (HSM) usually means making products or prototypes rapidly by using milling machines at higher spindle rates with lighter, shallower cuts to achieve greater metal removal rates and lower operating costs.

How Did HSM Develop?

HSM grew out of CNC techniques developed in aerospace manufacturing at companies such as McDonnell Douglas (now part of Boeing). Originally, one of the reasons for using HSM was to machine at specific speeds that would avoid what’s known as “chatter” (machine vibration that can become noisy and/or violent) by taking advantage of milling at natural frequencies. By keeping high speeds stable, parts could be more milled more accurately and have less “ribs,” resulting in a lower weight. Lighter parts meant less heavy, more efficient aircraft. The goal for McDonnell Douglas became reducing the weight of many of its sheet metal parts and combining pieces together for even more efficiency. Eventually, so dramatic was the success of HSM that a jet that formerly was built with 14,000 parts now required only half that number. This greatly reduced costs and allowed speedier production of finished airplanes. As such, HSM became an assembly solution for McDonnell Douglas and eventually other aircraft manufacturers.

What Makes HSM Effective?

Although it may seem counter-intuitive, the way high speed machining works is that a higher machine “spindle rate” (measured in rotations per minute of the tool) combined with lighter cutting will actually remove more material faster than slower spindle rates and heavier cutting. Lighter cutting also means more efficiency from a power perspective — some CNC machines may be rated at a high horsepower but can become overloaded if their cuts are too deep.

With HSM, cutting temperatures are actually reduced; surface finish is also improved, and the machines’ spindle and cutter acquire less wear-and-tear over time. This is especially true with harder materials. Cutting becomes more consistent and more reproducible. Often, HSM combines the roughing and finishing passes that are normally separate at lower speeds. This means that throughput generally increases when HSM is applied to process workflows.

What Are the Benefits of HSM?

In mold making, HSM allows for intricate cavity and core geometries and can enable the quick machining of large, complex components out of solid blocks of material. Material walls can be made very thin, and edges can be very sharp. Accuracy and precision are improved, and time spent polishing surfaces can be reduced. Automation can be improved because errors and interruptions are fewer. Molds and dies have more durability because fatigue cracks are lessened, hence there’s less risk of breakage. Assembly of finished products often can go faster. In general, customers are very satisfied with the output of pieces produced with high speed machining.

How Has HSM Helped Tag Team Manufacturing?

At Tag Team Manufacturing, high speed machining has allowed us to boost our capacity and handle more orders in a shorter timeframe. This, combined with our sophisticated MasterCam CAD/CAM programming system, makes us the leading provider of machined components in the Denver, Colorado region.

Source:

https://www.makino.com/about/news/Ramping-Up-To-High-Speed-Machining/204/

http://www.mmsonline.com/zones/hsm

modern manufacturing

The Role Of CNC Automation In Modern Manufacturing

No business can survive without adopting the most advanced technologies, and in manufacturing, there are few devices more important than CNC machines. CNC, or Computer Numerical Control, manufacturing involves operating lathes, mills, drills, and other devices from a single computer. Manufacturers program the computer with precise instructions for the products they want to make; the machines can then manufacture those products without any additional input. CNC devices dramatically improve efficiency and cost-effectiveness, and have thus become a mainstay of modern manufacturing.

The CNC revolution is only beginning, and with each year manufacturers develop new, more effective ways to use this technology.

Advantages Of CNC Automation

CNC automation has a wide range of benefits for the manufacturing process, including:

• Consistency

    1. – Other than needing occasional downtime for maintenance and repair, CNC machines can perform the same job exactly the same way 24 hours a day, every day of the year.

• Volume

    1. – A CNC machine can produce the same product over and over again, thousands of times. All of the products will be identical to each other, eliminating the chance of mistakes after the programming stage.

• Intricacy

    1. – A CNC machine can follow any programmed instruction down to the most intimate detail. This allows manufacturers to create products with much more precise designs than manual devices or older forms of automation could achieve.

• Efficiency

    1. – The precision of CNC machines also means that they can use every material presented as efficiently as possible, dramatically reducing waste and thus the cost of production.

• Safety

    1. – CNC machines represent complete manufacturing automation; the operator never has to touch the materials being used. As such, it is ideal for manufacturing tasks that involve extreme temperatures, toxic or corrosive materials, or other factors that would place human operators at risk.

• Speed

    1. – CNC devices combine multiple steps in the modern manufacturing process, dramatically reducing the amount of time it takes to finish production.

• Simplicity

    1. – Whereas other forms of manufacturing automation require skilled operators, a CNC machine requires a relatively low level of skill to use. Under ordinary conditions, a single operator can also supervise multiple machines at the same time, leading to lower labor costs.

 

    Compared to these advantages, the only significant disadvantage of CNC automation is the high up-front cost. By improving efficiency, reducing waste, and preventing mistakes, CNC machines quickly make up for their initial prices, providing long-term savings for manufacturers in a wide range of industries.

What Comes Next? The Future Of CNC Automation

The CNC revolution is only beginning, and with each year manufacturers develop new, more effective ways to use this technology. At present, experts are focused on ways to integrate CNC machines with with the robots used to move and pack finished goods. Doing so will streamline the manufacturing process, reducing waste and increasing simplicity. A single control panel may one day be enough to direct an entire manufacturing operation.

Another key development is the advent of the CNC 3D printer, which has made this type of manufacturing available to smaller businesses and even individuals. As these devices fall in price and grow in complexity, CNC manufacturing will become increasingly personalized and decentralized.

To learn more about modern manufacturing, robotics, and other hallmarks of manufacturing automation, contact Tag Team Manufacturing today.