Tag Archives: Deburring

Testing & Expertise Overcome Shot Blasting Challenges

For nearly a decade, Sales Representative and Interim Product Manager of Turbine Blast Equipment Zack Murray has been one of Rosler’s top shot blasting experts. 

Working with customers and our global Customer Experience Centers, he helps develop and test surface finishing machines and media in addition to dialing in specific process parameters.

At times, adhering to the Rosler motto and guiding principle of “finding a better way…” can be difficult and complicated. Luckily, Murray and the entire Rosler team are committed to delivering world-class surface finishing equipment, consumables, and service in a variety of industries.

In this post, Murray shares the most challenging issue he has tackled at Rosler and how the team developed a solution.

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Comprehensive Mass Finishing System Provides ‘Shear’ Results for Gardena

Improved productivity, increased production capacity, better quality, and lower costs—a leading garden tool manufacturer tasked Rosler with developing a new mass finishing system to improve the deburring and polishing of garden shear knives.

Rosler provided a solution in the form of a tailor-made Keramo-Finish® process carried out within a double-batch centrifugal disc finishing machine. Known as the FKS 35.1 A2-So, the system includes fully automatic work piece handling and a two-stage process that deburrs and polishes stamped and laser-cut knives. Work pieces are subsequently dried in an energy-efficient rotary dryer and prepared for the next manufacturing step.

The Situation

For more than 60 years, the Gardena division of Husqvarna Group has developed a variety of gardening products and tools. The company’s broad product range includes innovative systems for irrigation, soil cultivation, and lawn, tree, and shrub care. Gardena products are used in more than 80 countries worldwide.

To ensure easy and simple handling, produce excellent cutting performance, and guarantee long service life, the Gardena’s shear components are produced with state-of-the-art manufacturing technologies. Stamping or laser cutting of the upper and lower knives followed by surface finishing is an important step.

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Shot Blasting, Peening Offer Aerospace Advantages

Critical aerospace components require first-class surface treatment. From engines, fuselage, wings, and landing gear to seats, gears, propellers, blades, fasteners and tanks for fuel, water, and waste, Rosler has industry experience and expertise.

While mass finishing and shot blasting methods are equally useful to manufacturers of new components and in the overhaul and repair of existing components, shot peening – a particular type of shot blasting – is especially advantageous for aerospace work pieces thanks to its ability to provide surface finishing and create internal compressive stress for improved component life.

Shot Blasting Capabilities

Rosler’s shot blasting technology meets the strict surface finishing requirements predicated by tight tolerances for safety and longevity. This impact-based process propels small metal or mineral pellets onto a work surface at speeds of 200-800 feet per second.

Desired finishes including cleaning, texturing, removal of or preparation for coating, and peening can be pinpointed to specific areas of a given work piece as well as the entirety of large, structural components.

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Diecastings – Surface Finishing Options

Diecasting 3

There are a number of ways diecast manufacturers can choose to go when looking to deburr and finish large numbers of components.

Here we look at the options of vibratory vs blast processing and bring to your attention a few facts and choices you should consider.

 

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Centrifugal (High Energy Disc) Finishing – What Is It And Why Should You Consider Using It?

 

Centrifugal (high energy disc) finishing is a mass finishing technology that allows rapid finishing of smaller, robust parts. Whereas vibratory finishing utilises a moving bowl transferring energy into the contained media (chips) and parts in this case the bowl is static and movement is caused by a rotating disk, fixed on a shaft in the base of the bowl.

Standard FKS Machine

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Surf Finishing – What Is It And Why Should You Consider Using It?

Surf finishing images

 

Surf finishing is a fully automatic, dry and/or wet processing method with; extremely short cycle times, high process stability, repeatability and can provide finishing of precisely targeted surface areas for deburring, surface grinding, smoothing and polishing of delicate, high-value components with complex geometries.

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Mass Finishing – What Is It And Why Should You Consider Using It?

Barrel, vibratory and high energy disk centrifugal force machines are all precisely controlled methods of processing small and/or large batches of engineered components in order to; remove sharp edges, eliminate tool marks, remove flash, de-scale, radius edges, polish and/or burnish the surface.

MF components image as at 07122015

Compared to traditional hand finishing methods the equipment brings a host of benefits including; reliability, consistency of finish produced, efficiency and effectiveness as well as reducing finishing cost per part.  Added to that machines can be linked to dryers, washers, separators and transfer systems right the way through to being integrated into fully automatic ‘lights out’ production cells.

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