Failure analysis of H13 working die used in plastic injection moulding

Medrea, C.; Kyriakou, N.

doi:10.1016/j.engfailanal.2013.02.028

Cited by 37 publications

(15 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A Plastic product polycarbonate plastic material was taken for the experiment with optimal injection molding conditions and its tensile stress test was conducted in order to minimize defects and increase its strength. D.Papageorgiou, et al (2013) [6] found on their study the die was made from AISIH130 steel and was intended for the production of plastic cups used for the outer closure of cylindrical aluminium cans in coffee packaging. Corrosion damage and wide crack are observed by naked eye.…”

Section: Figure1: Plastic Injection Molding Machinementioning

confidence: 99%

Design and Fabrication of Mini Injection Molding Machine

Patil¹

2017

IJRASET

View full text Add to dashboard Cite

Injection molding is considered to be one of the most prominent processes for mass production of plastic components. The objective of this project is to design and fabrication of mini injection molding machine to produce the electrical holder and we reduce the machine cost by developing this machine. The scope of the studies are performed which is the study will be using a Polypropylene material reinforced with glass fibers. The project can be divided into four stages. First step is design of the mini injection molding machine and second is the preparation of the material and development of the machine, then third step is injection molding machine used to produce electrical holder. The prepared electrical holder is more cost effective compared to other conventional materials because the plastic is available in environment larger quantity only few reinforcements have to be purchased in a minimum quantity. This may not add material cost because of its minimum quantity requirement (less than 5% by weight of that material). And finally testing of the polymer composite with reinforced glass fiber. The result observed from the experiment has shown that, polypropylene thermal conductivity is decreases by adding of the glass fiber. And increase the hardness by adding of the glass fibers to the polypropylene.

show abstract

Section: Figure1: Plastic Injection Molding Machinementioning

confidence: 99%

Design and Fabrication of Mini Injection Molding Machine

Patil¹

2017

IJRASET

View full text Add to dashboard Cite

show abstract

“…Except the hardness, mechanical properties and wear resistance that mentioned above, the corrosion resistance is also one of the most important performances that affect the quality of die and mold. Because the injection molds are generally exposed to the acidic environment due to the decomposition of thermoplastics [23]. Nevertheless, to the best of authors' knowledge, the studies on the corrosion behavior of the SLM samples for molds are limited.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of the S136 Mold Steel Fabricated by Selective Laser Melting

Wen

Zhou

Han

et al. 2018

Chin. J. Mech. Eng.

View full text Add to dashboard Cite

The selective laser melting (SLM) method has a great potential for fabricating injection mold with complex structure. However, the microstructure and performance of the SLM molds show significantly different from those manufactured by traditional technologies. In this study, the microstructure, hardness and especially corrosion behavior of the samples fabricated by SLM and casting were investigated. The XRD results exhibit that the γ-Fe phase is only obtained in the SLM parts, and the α-Fe peak slightly moves to low diffraction angle compared with casting counterparts. Due to the rapid cooling rate, the SLM samples have fine cellular microstructures while the casting ones have coarse grains with obvious elements segregation. Besides, the SLM samples show anisotropy, hardness of side view and top view are 48.73 and 50.31 HRC respectively, which are 20% higher than that of casting ones. Corrosion results show that the SLM samples have the better anti-corrosion resistance (in a 6% FeCl 3 solution for 48 h) but the deeper corrosion pits than casting ones. Finally, the performance of the SLM molds could meet the requirement of injecting production. Moreover, the molds especially present a significant decrease (20%) of cooling time and increases of cooling uniformity due to the customized conformal cooling channels.

show abstract

“…When the stresses excess the limit of mould materials, the plastic deformation occurs in the surface layer and the cracks are formed at the grain boundary . The failure form is composed of hot wear and thermal cracking, presenting with the cracking and adhesion phenomena on the mould cavity surface . The W alloys have the advantages of high melting point, high density, high strength and etc., which is of great significance to improve wear resistance of H13 hot work mould steel .…”

Section: Introductionmentioning

confidence: 99%

“…6,7 The failure form is composed of hot wear and thermal cracking, presenting with the cracking and adhesion phenomena on the mould cavity surface. [8][9][10] The W alloys have the advantages of high melting point, high density, high strength and etc., which is of great significance to improve wear resistance of H13 hot work mould steel. 11,12 As a hard coating, WC-12Co coating has high hardness and toughness, in which the WC has good abrasion resistance, and the Co binder has a certain strength and toughness.…”

Section: Introductionmentioning

confidence: 99%

Surface and cross–section characteristics and friction–wear properties of high velocity oxy fuel sprayed WC–12Co coating

Shen

Tianyuan

Dejun

2018

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

A WC–12Co coating was sprayed on H13 hot work mould steel using a high velocity oxy fuel (HVOF). The surface and cross–section morphologies, chemical compositions, and phases of obtained coatings were analyzed using a field emission scanning electron microscope (FESEM), energy dispersive spectrometer (EDS), and X–ray diffraction (XRD), respectively. The friction–wear properties were investigated using a wear test, the wear mechanism of WC–12Co coating was also discussed. The results show that the WC–12Co coating primarily is composed of WC hard phase with high hardness and Co as a binder, which is evenly distributed on the coating surface, no atom–rich zones. There is no W3O phase appearing in the HVOF spraying, showing that the WC–12Co coating has high oxidation resistance, the new phases of W2C and C are produced due to the decarburization of WC. The coating thickness is ~200 μm, which is combined the substrate with the mechanical binding and local micro–metallurgical bonding. The average coefficient of friction (COF) of WC–12Co coating is 0.272, showing good friction performance, the wear mechanism is primarily abrasive wear, accompanied with fatigue wear.

show abstract

Failure analysis of H13 working die used in plastic injection moulding

Cited by 37 publications

References 9 publications

Design and Fabrication of Mini Injection Molding Machine

Design and Fabrication of Mini Injection Molding Machine

Corrosion Behavior of the S136 Mold Steel Fabricated by Selective Laser Melting

Surface and cross–section characteristics and friction–wear properties of high velocity oxy fuel sprayed WC–12Co coating

Contact Info

Product

Resources

About