image analyzers

Weld structure analysis is extremely important to understand the quality of the weld, which in turn helps to understand the strength, performance and durability of the welded component. Any kind of weld such as butt weld, lap weld or T-joint weld should pass through the stringent macrographic inspection to reveal the intended quality, anomalies or disparities. Similar to metallography analysis, weld joint need to be cut in cross-sectional direction, polished to the mirror finish and etched with appropriate etchant to reveal the structure of bead, surrounding area, heat affected zone, weld passes etc. This sample then is placed under stereozoom microscope and further analysis can be carried out with DeXel-Weld Image analyzer. Weld Joint programs – Software has preloaded list with measurement parameters specific to type of weld joint like butt weld, lap weld, T-weld, corner weld, edge weld etc. Extensive list of parameters – List includes all the geometric parameters of weld such as Leg lengths, throat, penetrations, root penetration, metal thickness, gap, Area and depth of Heat Affected Zone, Joining Angles etc Macro based analysis - User can also preselect the parameters from the list and create a customized list depending upon specific requirements. The best part is that the macro can be created in user-friendly excel format. Color coded Measurements - All the measurements are color coded for better and quick understanding of the report. Porosity and other defect Analysis - Geometrical parameters such as length, width, area, perimeter estimation of defects such as porosity, crack, lack of fusion etc 2D analysis of features - Object counting, distance between any two points, angle between any two edges, Area of circle rectangle, irregular shape etc. OK/NOK Report – Limit values (Acceptance specifications) can be assigned to the each parameter and derived value can be compared which immediately confirms OK or Not OK reading. Report Generation – Simplified report in predefined excel template with facility to add logo, address etc.

Qualification and quantification of microstructural features have always been crux of any metallurgical Analysis. Digitization of the microstructure with the help of image capturing hardware and storage into computer, analysis of these images with specialized image processing & analysis software modules has changed the complete scenario in material characterization. Tremendous advancements in computer technology and software developments has shifted manual interpretation methods to computerized ones in metallography, just like any other field. Image analyzers (comprehensive term which include image capturing, processing, analysis and reporting) has given great advantage to metallurgists in their everyday activities as well as in their research. Fatigue-free and User-friendly Analysis of microstructure with specialized image analyzers relieves tediousness and fatigue associated with manual measurements. Analyzing hundreds of fields manually could create tremendous fatigue and force the errors during analysis which are completely avoided in analysis through Image analyzers. Fast Just like any other computerized application, analysis of microstructure can be done extremely fast with image analyzers which also increases the productivity. Precision and Accuracy Inherent nature of software coding which is implementation of mathematical formulae renders highest possible precision and accuracy in any of the microstructure analysis. Repeatability and Reproducibility Computer being a deterministic machine which will always yield same results when same program is run on the same input. This makes Image Analyzer give full repeatability and reproducibility. Data Preservation All the analyses done and reports generated can be stored in digital format in your computer and you can retrieve the same any time in future without any much hassle. Dependability Though Image analyzer cannot replace the metallurgist, however a well trained staff can perform highly dependable analysis and produce the reliable results. Compliance to standards Mathematical and non-mathematical inputs from various ASTM, JIS, DIN and other international standards are typically translated into programs while writing the software of Image analyzer. So eventually these software modules are compliant to these standards. Cost Efficient After the initial cost of investment is done, there is no running cost for Image analyzer. This makes their use extremely cost efficient in daily use. -------------------------------------------------------------------------------------------------------------------------------------------------- Applications -Raw Material -Steel Mills -Forgings -Ferrous and Non-ferrous Castings -Heat Treatment -Weld structures -Electronic components -Petrography -Cement and Clinker -Material science Key Features Application Specific Analysis Modules – Grain size measurement; Phase analysis; inclusion analysis; nodularity, nodule count and size classification; graphite flake type, count and size classification; Porosity measurement, Banding Analysis, Decarb and coating thickness and many more… 2D analysis – Modules for measurement of count and various geometric aspects of features such as length, width, area, parameter, angle etc