Medical Instruments, Part 3 – Adjusting Surface Finishing Alongside Medical Advances

All medical technology requires precise surface finishing to ensure safety, strength, and longevity. The specific surfacing goal and technique vary though.

From stainless steel dental drill heads that require deburring and surface smoothing to stainless steel tweezers that require surface cleaning and texturing after forging/grinding and induction welding, the specific treatments are the key to surface finishing success.

Medical Instruments, Part 3 blog - Adjusting Surface Finishing Alongside Medical Advances

In our last medical instrument blog, Rosler Metal Finishing discussed the merits of mass finishing and shot blasting for medical instruments.

This blog will address a particularly challenging form of material in need of surface finishing and answer the question: What specific surface finishing challenges are there in the medical field?

Continue reading Medical Instruments, Part 3 – Adjusting Surface Finishing Alongside Medical Advances

Spinal Implants, Part 2 – Processed to Perfection

Along with the material choice discussed in Part 1 of our Spinal Implants series, surface treatment is the most important factor affecting the functionality, performance, and longevity of spinal implants and instruments.

During the manufacturing process they may have to undergo multiple finishing operations including burr removal from previous manufacturing operations, rounding of sharp edges, general surface cleaning, surface smoothing, and, frequently, high gloss polishing.

Treatment steps can also include surface texturing/profiling and shot peening, areas Rosler Metal Finishing has extensive experience in.

This blog post will focus on the finishing requirements and challenges of spinal implants as well as the solutions provided by mass finishing and shot blasting processes and the associated costs.

Continue reading Spinal Implants, Part 2 – Processed to Perfection

Medical Instruments, Part 2 – Mass Finishing or Shot Blasting, Which Technique is Best?

The medical industry is constantly looking for better, more suitable materials that will offer greater performance and longevity for medical devices, implants, and instruments while simultaneously searching for more efficient manufacturing technologies.

When it comes to surface finishing, such newly developed materials and manufacturing processes can pose considerable technical challenges. That’s why close cooperation between the medical device manufacturers and qualified surface treatment experts is essential during the development and prototyping phase.

In our last medical instrument blog, Rosler Metal Finishing discussed the surface finishing requirements for medical instruments. This blog will dive deeper into the techniques used in surface finishing and answer the question: What is the best type of surface finishing for medical instruments?

The short answer is a combination of mass finishing and shot blasting. Guidance for a surface finishing expert can help determine the best process – typically a series of processes – for a specific medical instrument.

Continue reading Medical Instruments, Part 2 – Mass Finishing or Shot Blasting, Which Technique is Best?

Spinal Implants, Part 1 – Surgical Specifications

Technological advances in medical equipment and implants have driven worldwide spinal implant sales to $10 billion annually.

Like orthopedic implants used for joint reconstruction and the surgical fixation of a bone fracture, spinal implants are subject to very specific and strict surface finishing requirements.

Mass finishing and shot blasting play a key role in creating the right finish for spinal implants, not only for intermediate surface treatment after forging, casting, machining, additive manufacturing, etc., but also for placing the final surface finish before implantation.

Rosler Metal Finishing has extensive experience in surface finishing spinal implants using mass finishing, shot blasting, and a combination of both methods.

In a series of posts, we’ll analyze the specific surface finishing requirements for spinal implants based on their functional and performance characteristics and describe the respective mass finishing and shot blasting equipment and methods available to fulfill these requirements.

Continue reading Spinal Implants, Part 1 – Surgical Specifications

Medical Instruments, Part 1 – Surface Finishing Requirements for Medical Instruments

Rosler Metal Finishing understands that medical instruments are subject to stringent quality standards. Whether during an office visit or a complicated surgery, material defects or malfunctions may create dangerous and even fatal consequences for patients and healthcare workers alike. Providing precise and durable surface finishes  for work pieces used in the medical industry is one of our passions.

In a series of blog posts, we’ll discuss the various technologies used for finishing the surface of medical instruments and how mass finishing and shot blasting play a key role, not only as intermediate steps but also for placing the final, finishing touch on these work pieces.

We begin with a basic question: What are the surface finishing requirements associated with medical instruments?

Materials Matter

Medical instruments are exposed to frequent use and subject to highly corrosive atmospheres caused by frequent sterilization in a steam pressure chamber, exposure to chlorine wipes, and ultrasonic cleaning. They must never fail. To minimize wear and prevent corrosion most medical instruments, especially surgical tools, are made from tough, slow wearing, corrosion-resistant, high-performance metal alloys including austenitic stainless steel, titanium, or cobalt chrome.

Continue reading Medical Instruments, Part 1 – Surface Finishing Requirements for Medical Instruments

Achieving Specific Finishes for Trauma Implants

In our last trauma implant blog, Rosler Metal Finishing discussed the materials used in trauma implants. From hip replacements to cranial plates, there are numerous uses for trauma implants; each with its own unique surface finishing needs and requirements.

Trauma implant manufacturers must achieve the necessary surface finish to ensure patient safety and best results. These finishing requirements can range from simple cleaning or deburring to surface smoothing and high-gloss polishing.

This blog will answer the question: What techniques are used to finish off trauma implants?

What types of finishes are used?

Trauma implants are subject to multiple finishing operations throughout the manufacturing process. After manufacturing steps including forging, blanking, machining, and thread cutting for screws, the workpieces usually undergo a surface cleaning (descaling, de-oiling), deburring, edge radiusing, or surface grinding operation, before they receive their final finish.

Continue reading Achieving Specific Finishes for Trauma Implants

Structural Steel FAQ, Part 9 – Removing Residual Blast Media and Dust

After shot blasting, structural steel components often require some cleaning. The degree of cleaning depends on the work piece’s condition prior to processing as well as machine set-up.

This installment of our Structural Steel FAQ series will answer How are residual blast media and dust removed from shot blasted steel components?

Why Remove Residue

Ancillary machine attachments and processes may be required to remove blast media and dust resting on structural steel components to ensure surfaces are properly prepared for painting and coating.

The need for a clean and well-prepared surface after shot blasting mirrors that of the pieces surfacing in the first place as discussed in Part 1 of this series.

Methods of Removal

Practically all plate and profile roller conveyor shot blast machines are equipped with a media brush-off system at the machine exit. By adding a rotary brush at the end of the process, residue is removed as the work piece exits the machine.

Continue reading Structural Steel FAQ, Part 9 – Removing Residual Blast Media and Dust

The Importance of Material Selection in Trauma Implants

Rosler Metal Finishing understands that trauma implants and medical devices are subject to stringent quality standards. Any material defect or malfunction can have catastrophic consequences for a patient. That’s why we take our work in the trauma implant field very seriously.

Also known as osteosynthetic implants, trauma implants include pins, screws, and plates used to surgically fix a bone defect. Implant manufacturers must select the right material and attain the required surface finish to ensure patient safety and best results.

Spinal Rods & Screws

In a series of blog posts, we’ll answer the most common questions about trauma implant materials and finishes.

We begin with a basic question: What materials are used in trauma implants?

The answer, in short, is usually stainless steel or titanium.

Does the material performance affect the selection?

In order to select the best material, trauma implant manufacturers must understand the specific performance attributes of the implant they are creating. Implants are subject to very strict performance and reliability standards. Selected materials must act as bone stabilizers and healing support while meeting the following guidelines.

Continue reading The Importance of Material Selection in Trauma Implants

Structural Steel FAQ, Part 8 – Are All Turbines Created Equal?

Shot blasting machines are widely used for surface preparation and finishing structural steel components for a variety of industries. In addition to specifically designing machines able to accommodate large, heavy, and bulky structural steel workpieces,  Rosler Metal Finishing also expertly designs the turbines within these machines for precise results.

Blast turbines accelerate and throw the blast media against the workpieces. They are for shot blast machines what the engines are for cars and trucks. Both determine the performance of the respective machine or vehicle including the speed of a sports car and the torque of a heavy-duty truck.

Like vehicle engines, the specifications of different turbines directly influence the performance of a shot blasting operation. This installment of our Structural Steel FAQ series will answer How do different blast turbines affect the quality of shot blasting results?

Blast Patterns

Blast patterns are the size and shape of the area where blast media strikes a workpiece as it progresses through the machine. The area of impact is also referred to as a “hot spot.” Long blast patterns are required to accommodate the large size of structural workpieces.

Concentrated blast patterns are often used in shot peening, but would not offer enough finishing coverage for structural steel applications. Similarly, the normal blast patterns used for casting and forgings are also not effective for structural steel.

Continue reading Structural Steel FAQ, Part 8 – Are All Turbines Created Equal?

Structural Steel FAQ, Part 7 – Comparing Commonly Used Blast Machines

Structural Steel FAQ, Part 7 – Comparing Commonly Used Blast Machines

Steel construction and steel trade, shipyards and ship building, and heavy equipment and machinery building rely heavily on specially designed shot blasting machines to prepare their components.

Rosler Metal Finishing expertly designs shot blasting machines for these industries and others to descale, clean, and prepare structural steel for surfaces for end-use. The particulars of each machine largely depend on the size and shape of the specific components in need of preparation.

This installment of our Structural Steel FAQ series will answer What are the most commonly used blast machines for structural steel surface preparation and how do they compare?

Machine Types by Workpiece

Whether surface preparation is needed for steel beams and plates, round bars, pipes and weldments, ship building, pipeline construction, or heavy equipment and machinery, there are machines tailored to produce consistent surface finishing results for each component.

The most common machine types by component include:

  • Roller Conveyor Machines for Plates and Beams
  • Round Bar and Pipe Machines
  • Roller Conveyor Machines for Large, Extra Heavy Components
  • Spinner Hanger and Monorail Hanger Machines for Large Components

Continue reading Structural Steel FAQ, Part 7 – Comparing Commonly Used Blast Machines

Shot Blasting and Mass Finishing Surface Finishing Experts

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