PECM Issue 66 2024 | Page 22

The value of expertise in precision machining challenging materials

EDITOR ’ S CHOICE MACHINING REMKO SOFT IRON

METAL TECH
The value of expertise in precision machining challenging materials
In the world of subcontract machining , tackling challenging materials like Remko soft iron demands expertise . Remko is renowned for its magnetic properties and is increasingly in demand across diverse industries , but can present complex machining challenges .
Precision machining and fabrication experts Metaltech Precision have risen to this challenge . With 25 years ’ experience in machining Remko soft iron , Metaltech is serving a growing market by providing technical solutions for the precision machining of challenging materials .
Why is Remko soft iron specified for key components ?
Soft iron has unique characteristics that combine to provide an excellent raw material for use in a wide range of applications , including :
• Magnetic permeability
Remko exhibits a high magnetic permeability , easily concentrating magnetic lines of force . This makes it an excellent material for creating magnetic circuits in devices such as transformers .
• Low hysteresis loss
Remko has minimal hysteresis loss , which occurs when energy is dissipated as heat during the magnetisation and demagnetisation process . Low hysteresis loss ensures the efficient operation of magnetic components .
• High electrical conductivity
Remko also has good electrical conductivity , making it suitable for use in electromagnetic coils and solenoids .
The challenges of machining Remko soft iron
Remko is considered a difficult material to machine effectively :
• High ductility means it can harden in cutting , deform and stretch
• Adhesive behaviour means it can stick to cutting tools
• Low thermal conductivity leads to thermal stress on tools and components
• Risk of the component becoming magnetised during machining .
All of these characteristics can cause dimensional inaccuracies in the workpiece , and increase tool wear and inefficiency . As a result , it can be hard to find machining companies who can achieve the precision machining of high quality components from such materials .
Expert Remko machining at Metaltech Precision
Years of experience have given Metaltech Precision a detailed understanding of the best way to machine Remko soft iron . To overcome the challenges of machining this difficult material , they must manage the process carefully , including :
• Proper tool selection
Choosing the right cutting tools , coatings and geometries is crucial to minimise issues related to adhesion and tool wear .
• Cooling and lubrication
Careful use of cooling and lubrication systems can help dissipate heat and reduce the risk of work hardening and tool wear .
• Slow cutting speeds
Lower cutting speeds can help manage heat generation and reduce the risk of work hardening , though this may result in reduced productivity .
• Anti-magnetisation techniques
It may be necessary to demagnetise the workpiece before and after machining to ensure dimensional accuracy and prevent interference with sensitive equipment .
Versatile machining expertise at Metaltech
Metaltech Precision is a classleading provider of turnkey precision CNC machining and fabrication solutions , adding value through years of expertise . Alongside its sister companies in Expromet Technologies Group , Metaltech Precision provides a range of technical solutions including machining and fabrication , investment casting ( Investacast ), and sand and gravity die castings ( Haworth Castings ) for performance-critical industries .
For more information on the precision machining of Remko and other challenging materials , contact Metaltech Precision on (+ 44 ) 01460 221737 , email sales @ metal-tech . com or visit www . metal-tech . com .
For further information , please visit www . metal-tech . com .
22 PECM Issue 66