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Articles
Frictionless Machining Reduces Heat, Chatter
Friction resulting from moving machine components rubbing together can create vibration and heat buildup, both of which can cause problems during machining operations. One machine from NTC America uses hydrostatic components to eliminate sources of friction for high-precision, small-parts machining.
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A New Spin On Vertical Grinding
Simultaneous, dual-wheel vertical grinding offers advantages for finishing bearing surfaces and other critical features on shafts. Having two opposing grinding wheels in contact with the workpiece at the same time neutralizes axial forces and shortens cycle times.
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Production Machining Center Integrates Rotary Transfer Concepts
A new machine platform combines CNC rotary transfer philosophy with machining center principles to offer an alternative to stand-alone production lines and flexible machining systems.
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Bryco Before and After
Within a two-month period, this Chicago-area contract shop reorganized the shopfloor, implemented new procedures and eliminated employee toolboxes. Here are the benefits the shop has seen.
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Keeping Things In Focus
Machine-mounted video cameras are part of a system that help a shop owner get more work done while spending less time in the shop. He can monitor and control what’s happening on his machines remotely. He’s also developed strategies for reacting to events such as unexpected tool wear or sudden tool breakage without returning to the shop to fix the problem.
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The Anatomy Of An End Mill For Aluminum
By using specialized cutter geometry and incorporating smooth finishes with tough coatings, Toolmex Corp., created an end mill well suited to cut aluminum aggressively. This tool called the "Mako" is part of the SharC line of specialized tools from the same company.
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Exploring Niches With New EDM Technologies
A shop specializing in wire EDM for large mold components now offers EDM “turning” of small, intricate parts. Despite the potential risks involved in early adoption of new technologies, the shop believes this practice gives it a leg-up on the competition and lets it gain experience with alternative machining techniques before offering them to customers.
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New Honing Options For Hypereutectic Aluminum Cylinder Bores
Hypereutectic aluminum is saturated with silicon particles that must be exposed during honing. A two-stage process first hones a cylinder’s wall to a mirror-like finish and then relieves aluminum around the silicon particles.
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Integrating Design, Manufacturing Processes
Lack of associativity between this shop’s design and manufacturing software packages led to extra work and a high risk of introducing errors into the process. To address these challenges, the mold manufacturer implemented an end-to-end CAD/CAM package from Cimatron that ensured a seamless workflow and eliminated time-consuming manual operations.
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Shop Aims For G Code
When rising material prices and the weak U.S. dollar contributed to a surge in demand from the mining industry, this manufacturer of rock-crushing equipment knew it had to boost productivity to keep up. Along with extensive support from trusted suppliers and an investment in new machines and cutting tools, the shop pushed the limits of its long-time CAM system to stay ahead of the curve.
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How to Hone an Atypical Aluminum Alloy
Hypereutectic aluminum used for engine blocks contains silicon particles that must be exposed during cylinder honing. This can be done using a cushioning, elastomer honing tool that allows individual abrasive particles to “bounce” over the silicon particles.
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Programming A Robot The Way You Program A CNC Machine Tool
Programming a robot with the same CAM software used for a multi-axis machine tool makes it unnecessary to “teach” the robot by jogging it manually from point to point and recording these point-to-point moves as the robot’s motion commands. Robotmaster is a software package that provides this CAD/CAM-based, off-line programming for robots. It runs fully integrated inside Mastercam CAM software for CNC machine tools.
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