Free-form laser consolidation for manufacturing rotary cutting dies

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TypeArticle
Proceedings titleProceedings of the Fourth Pacific Rim International Conference on Advanced Materials and Processing
Conference4th Pacific Rim International Conference on Advanced Materials and Processing (PRICM4), December 11-15 2001, Honolulu Hawaii
ISBN4889034048
9784889034042
Subjectlaser consolidation; tool steel; CPM-9V; rotary cutting die; wear; strength
AbstractFree-form laser consolidation is a novel process that produces a functional part layer by layer directly from a CAD model. A laser beam is used to melt a controlled amount of injected powder on a base plate to deposit the first layer and on previous passes for the subsequent layers. As opposed to conventional machining processes, this computer-aided manufacturing (CAM) technology builds complete functional parts or features on an existing component by adding instead of removing material. In this paper, laser consolidation of CPM-9V tool steel will be described to produce cutting blades on low alloy steel base to manufacture rotary cutting dies. The laser consolidated (LC) CPM-9V cutting blades, as well as the bond between the LC blades and the base, are metallurgically sound, free of cracks or porosity. Experimental results show that the LC CPM-9V has excellent mechanical properties. Its average tensile and yield strengths are about 1315 MPa and 821 MPa, respectively. Pin-on disk wear tests demonstrate that the wear loss of the LC CPM-9V material is only about 1/3 compared to that of the heat treated D2 tool steel currently being used for making rotary cutting dies. In production test, the LC CPM-9V die has successfully cut more than 180,000 m of labels without the need of re-sharpening so far.
Publication date
LanguageEnglish
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NPARC number21272566
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Record identifieraa7bebcf-428b-4c52-8d5c-2fdadd1a5f09
Record created2014-12-02
Record modified2016-05-09
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