Mold steel

Lecture Casting technology - Chapter 4.3: Die casting provide students with knowledge about advantages and limitations of die casting, die-casting alloys, molds for die casting, die casting machines, design considerations in die casting, low pressure casting,...

51p thienlangso 15-12-2021 24 0   Download

Improving the technical outputs of the electrical discharge drilling (EDD) process is an effective solution to decrease manufacturing costs. This paper presented a multi-response optimization to simultaneously improve the material removal rate (MRR) and decrease the dilation of hole (DH).

6p vicapital2711 02-08-2019 17 1   Download

(BQ) This paper is devoted to a study of the influences of EDM parameters on surface roughness for machining of 40CrMnNiMo864 tool steel (AISI P20) which is widely used in the production of plastic mold and die. The selected EDM parameters were pulsed current (8, 16 and 24 A), pulse time (2, 3, 4, 6, 12, 24, 48 and 100 s) and pulse pause time (2 and 3s). It was observed that surface roughness of workpiece and electrode were influenced by pulsed current and pulse time, higher values of these parameters increased surface roughness.

4p xuanphuongdhts 27-03-2017 46 2   Download

Are Special Fits with Matching Products Required? Often, certain dimensions of a product are specified with unnecessary close tolerances, when all the designer wanted to convey is that the product should fit suitably on another product (tightly or loosely), typically, a container and a matching lid. This requirement must be clear. Especially, when molding plastics with high shrinkage factors (e.g., PP or PE), it can be difficult to arrive at the proper “steel” dimensions, and some experimenting may be required to achieve the required fit. ...

0p haidang1 21-12-2009 91 16   Download