1. Bending time definition and its constituent items
1.1 Bending man hour refers to the man hour for bending in the workshop.
1.2 Bending man hour consists of preparation man hour, operation man hour and auxiliary loading and unloading man hour.
1.3 Preparation time refers to the time consumed to get familiar with process documents, get materials, adjust the bending machine, etc.
1.4 Operation man hour refers to the time consumed for bending.
1.5 Auxiliary loading and unloading man hours refer to the time consumed for loading and unloading.
2. Calculation regulations for each component item of bending man hour
2.1 The preparation time only considers the type of parts, that is, one preparation time is calculated for each type of parts.
2.2 The operation man hour is calculated based on the total number of bending tools for a single part, that is, the number of all tools for bending a part generates one bending processing man hour. The total number of tools, tool speed, thickness coefficient and weight coefficient must be considered.
2.3 Fixed working hours shall be set according to different material thicknesses. The 2mm thick steel plate shall be taken as the calculation standard, and the rest shall be corrected according to the corresponding thickness coefficient. See Attached Table 1 for details.
2.4 Fixed man hours shall be set according to different material weights. Steel plates of 10kg and below shall be taken as the calculation standard, and the rest shall be corrected according to the corresponding weight coefficient. See Attached Table 2 for details.
2.5 The man hours for auxiliary loading and unloading shall be set according to the different weights of steel plates. The steel plates of 10kg and below shall be taken as the calculation standard, and the rest shall be corrected according to the weight coefficient. See Attached Table 2 for details.
3. Bending Work Component Items and Classifications(Unit standard working hours)
4. Calculation of thickness coefficient
5. Calculation of weight coefficient
