Services de moulage par injection sur mesure | Weldo
Injection molded parts

Services de moulage par injection sur mesure

Turn approved designs into repeatable plastic parts with coordinated DFM, mold tooling, resin selection, molding, and inspection. Plan the material, finish, and production route before tooling begins.

  • DFM & Mold Tooling
  • Resin & Finish Options
  • First-Article Review
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De la validation des outillages aux pièces homologuées

Prepared resin is melted and injected into a closed mold, packed, cooled, and ejected. The tool and process are developed around the part's functional and cosmetic requirements.

01

DFM & Tooling

Review walls, draft, ribs, bosses, gates, ejection, and expected shrinkage.

02

Préparation de la résine

Confirm grade, color, reinforcement, and drying or conditioning requirements.

03

Cycle de moulage

Control filling, packing, cooling, and ejection to stabilize the molded part.

04

Sample Approval

Check critical dimensions and appearance before production release.

Injection molding process

Injection Molding Materials

Select the exact resin grade by load, impact, temperature, chemicals, friction, appearance, flame rating, and application requirements.

ABS

Balanced impact resistance, processability, and cosmetic appearance for everyday functional products.

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Pièces courantes
Housings, covers, handles, appliance components, and consumer-product parts.
Molding considerations
Match drying, gate design, wall transitions, and cosmetic requirements to the selected grade.
Selection focus
Impact, surface quality, color, temperature, and any specified flame rating.

Polypropylène / PP

Low density and chemical resistance, with suitable grades for flexible features and living hinges.

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Pièces courantes
Closures, containers, hinges, packaging components, and chemical-resistant accessories.
Molding considerations
Review shrinkage, cooling, warpage, hinge orientation, and grade-specific hinge performance.
Selection focus
Stiffness, impact at service temperature, chemical exposure, and hinge durability.

Polyéthylène / PE

Toughness and chemical resistance for molded caps, containers, and fluid-handling components.

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Pièces courantes
Caps, containers, protective components, and suitable fluid-contact parts.
Molding considerations
Confirm injection-molding grade, density, shrinkage, stiffness, and demolding behavior.
Selection focus
Flexibility, impact, chemical compatibility, service temperature, and dimensional requirements.

Material-family names do not establish a specific flame rating, biocompatibility, food-contact status, or application approval. Confirm the exact resin grade, supplier documentation, color system, and required tests during quotation.

Capacités en matière de moulage par injection

Planning references for tooling and production review. Machine choice and accepted tolerances follow the complete part, resin, and mold specification.

Project Review References

Quantité nominale injectée50 à 5 000 g*Machine and resin dependent; runner and cavity requirements are included. Not a guaranteed net part-weight range.
Typical dimensional reference±0.05–0.20 mm*Depends on feature size, resin shrinkage, geometry, tooling, and measurement condition.
Fonctionnalités de précision sélectionnéesFrom ±0.05 mm*Accepted after DFM, material, tooling, and inspection review.
Minimum-wall referenceFrom 0.5 mm*Resin, flow length, gating, geometry, and process dependent; not a general wall-thickness recommendation.
Mold-size reference400–1800 mm*Full mold dimensions, tie-bar clearance, opening requirements, and machine compatibility need confirmation.
Gamme d'outillagePrototype aluminum and production steel molds, selected for resin, volume, geometry, and tool-life requirements.

Tooling and Part Options

Tooling for the Production Plan

Review cavity count, mold material, inserts, side actions, runner system, maintenance, and intended production life.

Color and Molded Texture

Define approved color samples, gloss, polished or textured mold surfaces, gate marks, and cosmetic acceptance before tooling release.

Inserts and Secondary Work

Review insert molding, surmoulage, machining, printing, coating, and assembly as part of the complete process route.

*These values are quotation references, not universal limits. Part size, resin, filler, shrinkage, mold layout, cooling, and inspection requirements determine the confirmed capability.

Design for Reliable Molded Parts

Resolve filling, cooling, ejection, and cosmetic risks before mold construction. Functional requirements guide each design decision.

Murs uniformes

Use consistent sections and gradual transitions to reduce uneven cooling, sink, voids, and warpage.

Angles de repérage

Match draft to resin, wall depth, texture, and ejection needs to limit dragging and surface damage.

Nervures et bossages

Use proportioned ribs and supported bosses to add stiffness without creating thick, slow-cooling masses.

Rayons et angles

Round internal transitions to support resin flow and reduce stress concentration at loaded features.

Portes et éjecteurs

Agree locations around filling, weld lines, appearance, and surfaces that must remain functional.

Shrinkage and Fits

Account for exact resin grade, filler orientation, flow, and conditioning when defining tooling and final fits.

Molded Parts Across Industries

Injection molding combines repeat geometry, integrated features, and scalable production for a wide range of plastic components.

01

Automobile

Éléments d'intérieur, boîtiers électriques, clips, conduits et supports renforcés.

02

Équipement médical

Device housings, handles, and specified-material components for non-implant equipment applications.

03

Électronique grand public

Boîtiers, boutons, cadres, connecteurs et composants pour appareils portables.

04

Équipement industriel

Protections, boutons, engrenages, fixations, composants hydrauliques et capots de protection.

05

Produits de consommation

Fermetures, poignées, pièces pour appareils électroménagers, composants d'emballage et accessoires durables.

06

Systèmes électriques

Corps de connecteurs, capots isolants, pièces de gestion des câbles et boîtiers de capteurs.

From Material Approval to Production Control

Agree on critical dimensions, appearance, and inspection conditions before tooling, then validate the part and process through samples and production checks.

01

Approve the Specification

Lock the drawing revision, resin, color, finish, cosmetic zones, and critical features.

02

Validate Tool and Samples

Review mold operation, filling, cooling, ejection, and first-article results.

03

Monitor Production

Control approved process settings and agreed dimensional and appearance checks.

04

Protect and Release

Confirm secondary work, records, identification, surface protection, and packing.

Inspection CMM

Contrôle dimensionnel

Use suitable calibrated measurement equipment for drawing-defined features, with plastic-part support and conditioning considered in the inspection plan.

Inspection optique

Profile and Appearance Checks

Optical methods support accessible profiles and edges. Appearance is assessed against agreed samples, zones, texture, and cosmetic criteria.

Confirm inspection reports, material records, sample approvals, color references, and application-specific testing during quotation so they are included in the project plan.

Injection Molding Questions

What is needed for an injection molding quote?

Send a 3D model and controlled 2D drawing with resin grade, color, finish, order quantity, expected annual demand, critical dimensions, and inspection requirements.

Est-il possible de transférer un moule d'injection existant ?

A transfer is reviewed against ownership, mold dimensions, runner system, machine compatibility, condition, maintenance history, and available tool records. A trial may be needed before production approval.

Can color, texture, and gloss be customized?

Yes, subject to resin and tooling review. Agree on the color standard or sample, texture, gloss, cosmetic zones, and sample-approval criteria before tooling release.

Quels sont les facteurs qui influencent le coût du moulage par injection ?

Part size, cavity count, tool material, side actions, inserts, runner system, surface requirements, intended tool life, and validation needs drive tooling cost.

What determines project lead time?

DFM revisions, resin availability, mold complexity, tool construction, trials, sample changes, testing, and secondary work determine the confirmed schedule.

Can inserts, overmolding, and secondary operations be included?

Projects can be reviewed for insert molding, overmolding, machining, printing, coating, and assembly. Material compatibility, part interfaces, and acceptance criteria are confirmed for the chosen route.