Foodstuffs. Sample comminution for mycotoxins analysis. Comparison between dry milling and slurry mixing

2006 ◽  
Keyword(s):  
Dry Milling

scholarly journals Nickel-Based Alloy Dry Milling Process Induced Material Softening Effect

Materials ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 3758 ◽  
Author(s):  
Jun Zha ◽  
Zelong Yuan ◽  
Hangcheng Zhang ◽  
Yipeng Li ◽  
Yaolong Chen
Keyword(s):  
High Speed ◽  
Softening Temperature ◽  
Milling Process ◽  
Dry Milling ◽  
Milling Force ◽  
Softening Effect ◽  
Milling Temperature ◽  
Nickel Based Alloy ◽  
Alloy Softening ◽  
Milling Forces

Improving the cutting efficiency is the major factor for improving the processing of nickel-based alloys. The novelty of this research is the calibrated SiAlON ceramic tool dry milling nickel-based alloy process. Firstly, the nickel-based alloy dry milling process was analyzed through the finite element method, and the required milling force and temperature were deduced. Then, several dry milling experiments were conducted with the milling temperature, and the milling force was monitored. The change in cutting speeds was from 400 m/min to 700 m/min. Experimental results verified the reduction of the dry milling force hypothesized by the simulation. The experiment also indicated that with a cut depth of 0.3 mm, cut width of 6 mm, and feed per tooth of 0.03 mm/z, when milling speed exceeded 527.52 m/min, the milling force began to decrease, and the milling temperature exceeded the nickel-based alloy softening temperature. This indicated that easy cutting could be realized under high-speed dry milling conditions. The interpolation curve about average temperature and average milling forces showed similarity to the tensile strength reduction with the rise of temperature.

Dry milling of the ultra-high-strength steel 30CrMnSiNi2A with coated carbide inserts

2013 ◽  
Vol 18 (4) ◽  
pp. 468-473 ◽  
Author(s):  
Qiu-lin Niu ◽  
Da-peng Dong ◽  
Ming Chen ◽  
Yu-sheng Zhang ◽  
Cheng-dong Wang
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Dry Milling ◽  
Ultra High Strength Steel ◽  
Coated Carbide ◽  
Carbide Inserts

FEA-Methodology for the Prediction of Aluminium Thin Walled Part Deformation in Dry Milling Operations

2011 ◽  
Vol 223 ◽  
pp. 662-670 ◽  
Author(s):  
Hendrik Puls ◽  
Fritz Klocke ◽  
Dieter Lung ◽  
Ralf Schlosser ◽  
Peter Frank ◽  
...  
Keyword(s):  
Mechanical Load ◽  
Machining Process ◽  
Dry Milling ◽  
Collaborative Project ◽  
Power Train ◽  
Automotive Engine ◽  
Milling Operations ◽  
Thin Walled ◽  
The Eu

The presented work is a part of the EU integrated and collaborative project “Aligning, Holding and Fixing Flexible and Difficult to Handle Components” (AFFIX). The deformation of thin-walled components, caused by a thermo-mechanical load in the machining process, is a common challenge in manufacturing automotive engine heads and gearboxes. Geometrical tolerances like flatness are strongly affected by the thermo-mechanical process loads, and therefore cause production scraps and serious engine faults in case of undetected defects. To avoid long process setup times, a methodology has been developed to calculate the resulting part flatness. Based on the developed methodology a clamping strategy has been identified which minimises the resulting part deformation in milling operations and thus ensures the accuracy and quality of thin-walled aluminum power train parts.

scholarly journals Thermographic Study of Chip Temperature in High-Speed Dry Milling Magnesium Alloys

2016 ◽  
Vol 7 (2) ◽  
pp. 86-92 ◽  
Author(s):  
Józef Kuczmaszewski ◽  
Ireneusz Zagórski ◽  
Piotr Zgórniak
Keyword(s):  
Temperature Measurement ◽  
Magnesium Alloys ◽  
High Speed ◽  
Machining Process ◽  
Dry Milling ◽  
Technological Parameters ◽  
Chip Temperature ◽  
Thermographic Study ◽  
On Chip ◽  
The Impact

Abstract This paper presents an overview of the state of knowledge on temperature measurement in the cutting area during magnesium alloy milling. Additionally, results of own research on chip temperature measurement during dry milling of magnesium alloys are included. Tested magnesium alloys are frequently used for manufacturing elements applied in the aerospace industry. The impact of technological parameters on the maximum chip temperature during milling is also analysed. This study is relevant due to the risk of chip ignition during the machining process.

Effect of Different Processing on Corn Starch and Protein

2012 ◽  
Vol 554-556 ◽  
pp. 990-993
Author(s):  
Jian Zou ◽  
Hai Yan Gao ◽  
Jie Zeng
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Corn Starch ◽  
Ultra Violet ◽  
Absorption Spectrometry ◽  
Dry Milling ◽  
Wet Milling ◽  
Corn Flour ◽  
Sds Page ◽  
Scanning Electron

Scanning electron microscopy of samples showed that corn flour granules by fermented and wet-milling were angular, pentagonal or elliptical similar to native starches while samples with extruding and cooking were irregularly fibrous and large granules. Protein of samples with wet-milling exhibited an obvious DSC endotherm, To 85.81°C, Tp 92.95°C, Tc 101.73°C and ΔH 1.614J/g.While the fermented and extruded samples had no endotherm. Ultra-violet absorption spectrometry showed that absorbance of fermented and extruded samples increased and the λmax were slightly red shift. The λmax were 294nm, 297nm and 310nm for wet-milling , fermented and extruded flour, respectively. SDS-PAGE patterns of wet-milling flour contained four bands, fermented samples only three bands while extruded samples had same bands with dry-milling.

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