How to get values from request form to approved form in ax 2012


I am new to AX 2012 I need to get the values form Loan request form to Loan approval form. In Loan request form which is workflow the user will enter the values for loan request it is having 6 fields when the workflow status is set to approved in Loan request form that record should become non editable and values of that particular record should automatically enter in approval form please let me know if any one know this requirement!!!

Thank you!