Performance appraisal in personnel management has good results no matter which industry is used. Good performance appraisal indicators have a great effect on mobilizing the enthusiasm of the work of the majority of employees, improving production efficiency, and completing production tasks according to the plan to ensure quality. Therefore, the reasonable formulation of performance indicators is the top priority of mechanical processing enterprise management. So, what are the performance appraisal methods for CNC machining workers? Let me introduce to you today.

The performance appraisal method of CNC machining workers is mainly applied to all employees engaged in CNC production in the production department and workshop.

1. General machining time generationmethod

General machining companies use the method of working hours to perform performance management. The design of working hours is mainly based on the combination of technical measurement, software assisted and empirical analysis.

The method of machining man-hours is mainly composed of processing man-hours and auxiliary man-hours. The main calculation methods are as follows: machining time = product theory working time × machining coefficient + auxiliary time.

In this formula, the auxiliary time mainly refers to the time required for pre-production preparation, clamping during the processing, tool change, and the self-test process of the employee. The machining coefficient refers to the difficulty of the product in the actual processing, the degree of fatigue of the staff, etc., and generally uses a tentative value of 1.08-1.5. However, for difficult-to-machine materials and products with imperfect processes, the processing time is based on the actual processing time.

2. Reward working hours generation method

The reward working hours of the product are determined by the completion of the production task and the inspection result of the product. The calculation formula is: reward working hours = machining time × (difficulty coefficient + quality coefficient + 1).

3. Supporting working hours generation method

The frequency of support working hours is not high, but it also occurs under special circumstances. The employee needs to support other departments or positions, and the actual working hours are used as support working hours.

4. Loss working hours calculation method

The loss working hours mainly refer to the waiting time due to other reasons, the processing time increased due to the change of the drawing, the repair time caused by the subsequent processing, and the unpredictable time caused by the non-machining. The actual machining time is the machining man-hour, which is not included in the loss working time.

5. Monthly performance working hours calculation method

The performance time of employees is mainly the sum of machining man-hours, reward working hours, supporting working hours and loss working hours and attendance time in this month. Its calculation formula is: monthly performance working hours = total machining man-hours+ reward working hours+ supporting working hours+ loss working hours- attendance working hours.

If you feel that there is a difference in salary every month, you can calculate it by this method.