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1、,机电技术专业英语,2,Lesson Twenty-one,Text,Several specific benefits can be expected from the adoption of computeaided process planning techniques: (1) Reduced clerical effort in preparation of instructions. (2) Fewer calculation errors due to human error. (3) Fewer oversights in logic or instructions becau
2、se of the prompting capability available with interactive computer programs. (4) Immediately access to uptodate information from a central database. (5) Consistent information, because every planner accesses the same database. (6) Faster response to changes requested by engineers of other operating
3、departments. (7) Automatic use of the latest revision of a part drawing.,ComputerAided Process Planning1,Lesson Twenty-one,(8) Moredetailed, moreuniform processplan statements are produced by wordprocessing techniques. (9) Moreeffective use of inventories of tools, gages, and fixtures and a concomit
4、ant reduction in the variety of those items. (10) Better communication for production planning, including cutter life, forecasting, materials requirements planning, scheduling, and inventory control. (11) Better information for production planning, including cutter life, forecasting, materials requi
5、rements planning, scheduling, and inventory control.,Lesson Twenty-one,New Words and Expressions,Lesson Twenty-one,Lesson Twenty-one,Notes,1. process planning 工艺设计 2. process sheet 工艺过程卡片 3. variant approach 派生法 4. part family 零件族 5. group technology 成组技术 6. generative approach 创成法,Lesson Twenty-one
6、,Lesson Twenty-one,参考译文,采用计算机辅助工艺设计可以获得以下11点好处。 (1)在准备工艺文件时,减少书写工作量。 (2)减少在进行人工计算时所产生的错误。 (3)由于交互式计算机程序的提示功能而减少在逻辑和说明方面的疏漏。 (4)通过中央数据库可以直接利用最新的信息。 (5)由于每个工艺人员都利用相同的数据库,因此,可以保证信息的一致性。 (6)对由其他部门的工程人员所提出的修改意见做出快速反应。 (7)自动地利用最新版本的零件图纸。 (8)采用文字处理技术,产生更详细,更一致的工艺文件。 (9)更有效地利用库存的刀具,量具和夹具,减少这些物品的种类。 (10)由于能使工艺过程适合于某项特定的工作,而且用清楚的,有理有据的语言表达出来,因此,可与车间的人员进行更好的交流。 (11)可以更好地获得编制生产计划所需的信息,其中包括刀具寿命,预测,材料需求计划,进度和库存控制。,计算机辅助工艺设计,谢谢观赏,,Thank You !,