DANTE VCarb - Carburizing Process Design & Prediction Utility Tools

VCarb is used to design the Boost/Diffuse schedules of a low pressure (vacuum) carburization process according to the specified case depth and surface carbon. ?VCarb can also predict the carbon profile in terms of depth for a user specified Boost/Diffuse schedule.

Analysis Type and Material Definition

?VCarb can be used to predict current low-pressure carburization (LPC) schedules or be used to design an LPC schedule given certain input parameters and is defined through the Analysis Type.

VCarb uses the DANTE material database and DANTE diffusion and carbide morphology models to predict or design low pressure carburization schedules. Base carbon and alloy variation from the nominal composition can be considered

Geometry and Controls Definition

The VCarb Geometry definition is used to evaluate curved surfaces, if applicable, to the diffusion behavior (large radii will behave like flat surfaces). Part radius, load surface area (used for gas consumption calculation only), and model thickness (total carbon case should not exceed this value) can be defined.

The VCarb Controls include unit selections for temperature (℃/℉), time (sec./min.), pressure (mbar/Torr), length (mm/in.), and flow rate (L/sec., L/min., cc/sec., cf/min., cf/hr.). The type of gas/gas mixture used is represented by the Gas Type Factor and the rate of deposition of carbon onto the part surface is controlled by the Carburizing Efficiency factor. Finally, the saturation limit of carbon in austenite is defined (values from DANTE material database, calculated based on alloy composition, and user defined).

Process Definition for Design and Prediction

The VCarb Process definition is used differently depending on the Analysis Type chosen.

Prediction: The Process description for Prediction is used to enter a LPC schedule in terms of step time, temperature, and the partial pressure of the carbon carrying gas.

Process Design: The Process description for Design is used to define the furnace roundup time (time resolution of control equipment), several process targets (carburizing temperature, partial pressure of the carbon carrying gas, effective case depth (ECD), carbon at ECD (VCarb does not calculate hardness, so carbon is needed to define the ECD), and the final surface carbon), and several model parameters that can influence the final carbon profile (depth of monitor point and upper and lower limits of the monitor point).

DANTE Utilities : https://dante-solutions.com/process-design%2Fprediction#0d19798d-fa38-42da-88bf-501a4b6a97a0

For more details and trial : [email protected]