1.手板工艺路线制定可先按照工件需要分两次加工。先加工手板的外观内壁，铣好基准，再翻转180度装夹，加工外表面及按键屏幕位置。若先加工外表面，再加工内壁，则难以定位装夹进行二次加工。

哈希28单双1. The development of the prototype process route can be divided into two processing steps according to the needs of the workpiece. First, process the appearance and inner wall of the hand board, mill the benchmark, then flip it 180 degrees to clamp it, and process the outer surface and button screen position. If the outer surface is processed first and then the inner wall is processed, it will be difficult to locate and clamp for secondary processing.

2.如果手板的壁厚只有1.5mm，加工外表面时易出现变形、破碎的现象。如有在已加工好的型腔中加入填充物做出支撑。这样可避免加工出通孔部位，再填充石膏，否则很难分离成品和填充物。

If the wall thickness of the hand board is only 1.5mm, it is prone to deformation and breakage when processing the outer surface. If any filling material is added to the processed cavity for support. This can avoid processing the through-hole area and then filling it with gypsum, otherwise it is difficult to separate the finished product and the filling material.

3.要先修复修剪的曲面，掩盖住表面通孔位置，进行正面加工，然后再进行挖槽完成通孔加工，以免加工到通孔部位加工时刀路起伏不顺畅，切削力不均匀等现象。

哈希28单双3. The trimmed surface should be repaired first, covering the position of the surface through hole, and then machining on the front side. Then, groove excavation should be carried out to complete the through hole machining, in order to avoid uneven tool path and cutting force when machining to the through hole position.

4.手板上的各种零件应有足够的强度及刚度，防止使用过程中损坏和变形，手板上的各种零件应有足够的强度及刚度，防止使用过程中损坏和变形，紧固零件要有防松动措施，避免意外伤害操作者。不允许在加工过程中发生废料或工件飞弹现象，影响操作者的注意力，甚击伤操作者。另外要避免冲裁件毛刺割伤人手。

4. The various parts on the hand board should have sufficient strength and stiffness to prevent damage and deformation during use. The various parts on the hand board should have sufficient strength and stiffness to prevent damage and deformation during use. The fastening parts should have anti loosening measures to avoid accidental injury to the operator. It is not allowed to have waste or workpiece missiles during the processing, which may affect the operator's attention or even injure the operator. Additionally, it is important to avoid cutting hands with burrs on the punched parts.