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2.8 The expression "tool and die repair" is most commonly used for... O the process of disassembling the die and replacing worn parts with fresh elements O the sequence of material addition (through welding) and subsequent machining to final precise shape in worn areas 2.9 What is the most common material to make deforming tools (dies)? X steel O ceramics O cemented carbide O diamond 2.10 What is one of the main advantages of additive manufacturing compared to subtractive manufacturing? X high degree of freedom with regard to workpiece geometry O high strength of workpieces that can be achieved (e.g. compared to milled workpieces with same workpiece dimensions) 2.11 How is the true strain of a deforming process calculated (referring to a simple upsetting process as explained in the lecture)? (h: height, index 0: prior to deforming) O phi, = In (h/h,) X phi, = In (h,/h.) O phi, = (h,-h,)/h, %3D %3D 2.12 In hot extrusion, the recrystallization process takes place during the deforming process. True O False 2.13 Which feature of the tool and or machine is an important difference between fine blanking and conventional shearing? O In fine blanking, the blank holder has a special geometrical feature ("Vee ring" or "v-ring") that is not used in conventional shearing O In conventional shearing, a counter punch is applied on the opposite side of the workpiece (than the punch) O Fine blanking tools are usually cooled whereas shearing tools usually do not have a cooling system. 2.14 Which bulk forming technology is used to make a cardan joint (a workpiece that resembles an "X" or a cross)? O full forward extrusion O cup backward extrusion O radial extrusion

2.8 The expression "tool and die repair" is most commonly used for... O the process of disassembling the die and replacing worn parts with fresh elements O the sequence of material addition (through welding) and subsequent machining to final precise shape in worn areas 2.9 What is the most common material to make deforming tools (dies)? X steel O ceramics O cemented carbide O diamond 2.10 What is one of the main advantages of additive manufacturing compared to subtractive manufacturing? X high degree of freedom with regard to workpiece geometry O high strength of workpieces that can be achieved (e.g. compared to milled workpieces with same workpiece dimensions) 2.11 How is the true strain of a deforming process calculated (referring to a simple upsetting process as explained in the lecture)? (h: height, index 0: prior to deforming) O phi, = In (h/h,) X phi, = In (h,/h.) O phi, = (h,-h,)/h, %3D %3D 2.12 In hot extrusion, the recrystallization process takes place during the deforming process. True O False 2.13 Which feature of the tool and or machine is an important difference between fine blanking and conventional shearing? O In fine blanking, the blank holder has a special geometrical feature ("Vee ring" or "v-ring") that is not used in conventional shearing O In conventional shearing, a counter punch is applied on the opposite side of the workpiece (than the punch) O Fine blanking tools are usually cooled whereas shearing tools usually do not have a cooling system. 2.14 Which bulk forming technology is used to make a cardan joint (a workpiece that resembles an "X" or a cross)? O full forward extrusion O cup backward extrusion O radial extrusion

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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2.8 The expression "tool and die repair" is most commonly used for.. O the process of disassembling the die and replacing worn parts with fresh elements O the sequence of material addition (through welding) and subsequent machining to final precise shape in worn areas 2.9 What is the most common material to make deforming tools (dies)? X steel O ceramics O cemented carbide O diamond 2.10 What is one of the main advantages of additive manufacturing compared to subtractive manufacturing? X high degree of freedom with regard to workpiece geometry O high strength of workpieces that can be achieved (e.g. compared to milled workpieces with same workpiece dimensions) 2.11 How is the true strain of a deforming process calculated (referring to a simple upsetting process as explained in the lecture)? (h: height, index 0: prior to deforming) O phi, = In (h,h,) X phi, = In (h./h.) O phi, = (h,-h./h, 2.12 In hot extrusion, the recrystallization process takes place during the deforming process. O True O False 2.13 Which feature of the tool and or machine is an important difference between fine blanking and conventional shearing? O In fine blanking, the blank holder has a special geometrical feature ("Vee ring" or "v-ring") that is not used in conventional shearing O In conventional shearing, a counter punch is applied on the opposite side of the workpiece (than the punch) which is not used in fine blanking. O Fine blanking tools are usually cooled whereas shearing tools usually do not have a cooling system. 2.14 Which bulk forming technology is used to make a cardan joint (a workpiece that resembles an "X" or a cross)? O full forward extrusion O cup backward extrusion radial extrusion 2.15 In deforming, the occurence of scale (layer) starts at temperatures of approximately. O 200 °C O 400 °C 600 °C 800 °C 1000 °C
Transcribed Image Text:2.8 The expression "tool and die repair" is most commonly used for.. O the process of disassembling the die and replacing worn parts with fresh elements O the sequence of material addition (through welding) and subsequent machining to final precise shape in worn areas 2.9 What is the most common material to make deforming tools (dies)? X steel O ceramics O cemented carbide O diamond 2.10 What is one of the main advantages of additive manufacturing compared to subtractive manufacturing? X high degree of freedom with regard to workpiece geometry O high strength of workpieces that can be achieved (e.g. compared to milled workpieces with same workpiece dimensions) 2.11 How is the true strain of a deforming process calculated (referring to a simple upsetting process as explained in the lecture)? (h: height, index 0: prior to deforming) O phi, = In (h,h,) X phi, = In (h./h.) O phi, = (h,-h./h, 2.12 In hot extrusion, the recrystallization process takes place during the deforming process. O True O False 2.13 Which feature of the tool and or machine is an important difference between fine blanking and conventional shearing? O In fine blanking, the blank holder has a special geometrical feature ("Vee ring" or "v-ring") that is not used in conventional shearing O In conventional shearing, a counter punch is applied on the opposite side of the workpiece (than the punch) which is not used in fine blanking. O Fine blanking tools are usually cooled whereas shearing tools usually do not have a cooling system. 2.14 Which bulk forming technology is used to make a cardan joint (a workpiece that resembles an "X" or a cross)? O full forward extrusion O cup backward extrusion radial extrusion 2.15 In deforming, the occurence of scale (layer) starts at temperatures of approximately. O 200 °C O 400 °C 600 °C 800 °C 1000 °C
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