Thermoforming & Sheet Fabrication12 Thermoplastic Sheet Forming Methods ComparedThermoplastic sheet forming (thermoforming) heats extruded plastic sheet to its softening point and shapes it over male or female tooling using mechanical plugs, vacuum suction (up to 15 psi), or compressed air.…
Composite & Fiber-Reinforced ToolingReinforced Plastics Molding: Processes, Pressures, and 16 Design RulesThe term “reinforced plastics moldings” refers to composite structural parts manufactured by impregnating fibrous reinforcement cloth or mat with liquid thermosetting or thermoplastic resin, laminating multiple plies, and curing…
Press Room OperationsThe Plastic Molding Process CycleMastering the plastic molding process cycle in the press room requires coordinating material charging, low-to-high pressure mold closing, volatile gassing, thermal curing or cooling, and automated part ejection. Total cycle duration directly determines machine…
Alternative Polymer ProcessesPlastic Casting and Extrusion: Mold Configurations and Design RulesWhile injection molding dominates complex 3D high-volume production, liquid resin casting and continuous profile extrusion remain cost-effective alternatives for massive thick-walled blocks, low-volume prototypes, and continuous 2D cross-sections like tubing,…
Polymer Engineering & Material SelectionAdvantages and Disadvantages of Plastics Compared to Metals and CeramicsSynthetic polymers continue to replace structural metals and ceramics across automotive, electrical, medical, and consumer manufacturing. Evaluating the engineering pros and cons of plastics—from strength-to-weight ratios and…
Material Testing & ASTM StandardsPlastic Molding Terms: ASTM Mechanical, Thermal, Electrical & Optical PropertiesSelecting the right polymer grade for injection molding requires evaluating standardized mechanical, thermal, electrical, and optical test data. This engineering reference defines 22 core plastic molding terms…
Cost Engineering & QuotingCost of injection molding partsUse our interactive injection molding cost calculator to estimate unit part prices, mold tooling investment, clamping tonnage, and cycle time economics. Engineers and purchasing teams run cost models at three critical project stages:To…
DFM & Material SciencePlastic Shrinkage Guidelines in Injection Molding DesignEvery polymer contracts as it cools from molten processing temperatures down to ambient room temperature. Accurately compensating for plastic shrinkage in part CAD and cavity steel sizing prevents warpage, sink marks,…
