A Novel Test Bench to Investigate the Effects of the Tool Rotation on Cutting Fluid Jets to Improve the Tool Design via Additive Manufacturing

Lakner, Thomas; Bergs, Thomas; Schraknepper, Daniel

doi:10.1016/j.procir.2020.02.144

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…In the case of DRT, the component is directly processed and can subsequently be used as a tool for material forming or cutting, for example. In particular, in the manufacture of tools that require optimal temperature control (e.g., press-hardening tools [4,5]) or the addition of local lubricants (machining and forming tools [6][7][8]), AM makes it possible to introduce inner cavities, which is hardly achievable by subtractive or formative processes. The current state of knowledge on AM of tools is provided by the work of Hölker-Jäger [9] and Levy et al [10].…”

Section: Introductionmentioning

confidence: 99%

Additive manufacturing of carbon-martensitic hardening ledeburitic cold work tool steels using Fused Filament Fabrication and subsequent Supersolidus Liquid-Phase Sintering

Röttger,

Wieczorek,

Schmidtseifer

et al. 2024

Prog Addit Manuf

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In this work, the microstructure property relationship of D2 (X153CrMoV12; 1.2379) ledeburitic cold work steel processed by filament extrusion is investigated. Contrary to the conventional process, which involves a multi-step process of printing, debinding, and solid-state sintering, the specimens in this study were densified using Supersolidus Liquid-Phase Sintering (SLPS). SLPS occurs after thermal debinding in the interval between the solidus and liquidus temperatures. Optimized liquid-phase volume fraction was evaluated by means of thermodynamic calculations using the CALPHAD method and their experimental validation. The microstructure formation process during debinding, solid state, and SLPS sintering was investigated by X-ray diffraction and electron microscopy. Tomography studies confirm a relative density of 99.92% by volume during SLPS sintering at 1280 °C and provide a deep insight into local densification behavior during SLPS processing. In addition, surface roughness, as determined by confocal laser scanning microscopy, could be reduced. The reduction in porosity and surface roughness can be attributed to the presence of a liquid phase during SLPS. Using adapted heat treatment parameters determined by hardness-tempering curves, higher hardness values were achieved for SLPS-post-compacted specimens compared to conventionally processed specimens and the same material in the cast and heat-treated reference state.

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Section: Introductionmentioning

confidence: 99%

Additive manufacturing of carbon-martensitic hardening ledeburitic cold work tool steels using Fused Filament Fabrication and subsequent Supersolidus Liquid-Phase Sintering

Röttger,

Wieczorek,

Schmidtseifer

et al. 2024

Prog Addit Manuf

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“…Additionally, the optimized shape and layout of special channels ensure precise supply of cutting fluid separately to each cutting edge. Lakner et al [17] studied the supply of cutting fluid to the interface between the rake face and the chip. The purpose of their research was to increase the durability of cutting tools and apply higher cutting parameters to enhance the process efficiency.…”

Section: Introductionmentioning

confidence: 99%

Geometry, Structure and Surface Quality of a Maraging Steel Milling Cutter Printed by Direct Metal Laser Melting

2022

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This article considers the use of additive manufacturing to produce cutting tools for various machining operations, especially turning, milling, and drilling. The right geometry and material of the tool as well as coatings applied on cutting edges are crucial as they improve the life and performance of the tool. The study described here focused on a four-flute end mill made of maraging steel 1.2709 using a Concept Laser M2 Cusing Direct Metal Laser Melting (DMLM) machine. Before the printed tool was first used, it was examined to determine its dimensional and geometric accuracy, surface roughness, and surface structure. The measurement data showed that the tool required machining, e.g., grinding, to improve its geometry because the total runout of the shank and the cutting edge radius were too high, amounting to 120 μm and 217 μm, respectively. The cutting edges were sharpened to obtain a fully functional cutting tool ready to perform milling operations. The study aimed to check the dimensional and geometric accuracy of the 3D printed milling cutter and determine the optimal machining allowance for its finishing.

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Technological Features of Manufacturing a High Precision Spool Pair

Ardashev,

Zhukov

2024

Lecture Notes in Mechanical Engineering

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A Novel Test Bench to Investigate the Effects of the Tool Rotation on Cutting Fluid Jets to Improve the Tool Design via Additive Manufacturing

Cited by 5 publications

References 5 publications

Additive manufacturing of carbon-martensitic hardening ledeburitic cold work tool steels using Fused Filament Fabrication and subsequent Supersolidus Liquid-Phase Sintering

Additive manufacturing of carbon-martensitic hardening ledeburitic cold work tool steels using Fused Filament Fabrication and subsequent Supersolidus Liquid-Phase Sintering

Geometry, Structure and Surface Quality of a Maraging Steel Milling Cutter Printed by Direct Metal Laser Melting

Technological Features of Manufacturing a High Precision Spool Pair

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