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The use of single point incremental forming for customized implants of unicondylar knee arthroplasty: a review

Abstract

Introduction

The implantable devices are having enormous market. These products are basically made by traditional manufacturing process, but for the custom-made implants Incremental Sheet Forming is a paramount alternative. Single Point Incremental Forming (SPIF) is a manufacturing process to form intricate, asymmetrical components. It forms the component using stretching and bending by maintaining materials crystal structure. SPIF process can be performed using conventional Computer Numerical Control (CNC) milling machine.

Review

This review paper elaborates the various manufacturing processes carried on various biocompatible metallic and nonmetallic customised implantable devices.

Conclusion

Ti-6Al-4V alloy is broadly used for biomedical implants, but in this alloy, Vanadium is toxic so this alloy is not compatible for implants. The attention of researchers is towards the non toxic and suitable biocompatible materials. For this reason, a novel approach was developed in order to enhance the mechanical properties of this material. . The development of incremental forming technique can improve the formability of existing alloys and may meet the current strict requirements for performance of dies and punches.

Keywords:
Single Point Incremental Forming (SPIF); Unicondylar knee arthroplasty; Custom implants; Biocompatible material

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