Início / Fabricação de moldes automotivos

Automotive Injection Mold Making

Q: Como é que se garante a precisão da maquinação dos núcleos de moldes para a indústria automóvel?

Antes da maquinagem: realizamos o pré-tratamento dos materiais do molde, efetuamos análises DFM aos seus ficheiros 3D e preparamos equipamento de alta precisão para a produção. Durante a maquinagem: os componentes principais seguem um processo passo a passo de maquinagem de desbaste → semi-acabamento → maquinagem de acabamento → acabamento de precisão.Após a usinagem: a nossa empresa dispõe de ferramentas de teste de alta precisão, como a CMM (Máquina de Medição por Coordenadas), o instrumento de medição de imagens 2D, o detetor de digitalização a laser e o medidor de altura, para verificar as dimensões de peças-chave, como núcleos e inserções de moldes.

Q: É possível transformar um molde protótipo para peças automóveis num molde de produção?

No entanto, se discutir este assunto em pormenor connosco no início do projeto, poderemos prever a possibilidade de estruturas reforçadas e utilizar aço adaptável durante a conceção inicial do molde. Neste caso, o molde rápido para automóveis poderá ser adaptado para se tornar um molde de produção. Ainda assim, na maioria dos casos, a nossa resposta a esta questão será «não». No entanto, se discutir este assunto exaustivamente connosco no início do projeto, poderemos prever a possibilidade de estruturas reforçadas e utilizar aço atualizável durante a conceção inicial do molde. Neste caso, o molde rápido para automóveis poderá ser atualizado para um molde de produção. Ainda assim, na maioria dos casos, a nossa resposta a esta questão será «não».

Q: Qual é o vosso cálculo do prazo de entrega e qual é a vossa política em caso de atrasos no que diz respeito aos moldes para a indústria automóvel?

O prazo de execução é calculado com base numa avaliação científica da complexidade do molde e está claramente indicado no contrato. Os principais fatores são: horas de conceção, tempo de aquisição de materiais com prazos de entrega longos (por exemplo, aço especial), horas de processamento e montagem e um período de margem para testes do molde. Se o atraso for da nossa responsabilidade, informá-lo-emos imediatamente, iniciaremos um plano de recuperação e poderemos assumir as responsabilidades correspondentes, conforme estipulado no contrato. Se o atraso resultar de alterações da sua parte (ECN) ou de aprovações demoradas, o prazo de entrega será adiado — e atualizaremos o plano imediatamente, mantendo-o informado com total transparência.

We have kept steady growth for more than ten years in the highly competitive automotive mold industry.

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Types & Technologies - Automotive Mold Portfolio

Automotive Multi-Cavity Mold

Offers high-cavity precision mass production, especially for the large-scale production of small automotive electronic components.

Automotive Hot Runner Mold

Recommended for larger automotive exterior parts to get a scrap-free and efficient production plan.

Automotive Two Shot Mold

Meets the appearance and functional needs of multi-material or multi-color for automotive interior parts.

Automotive Over Mold

Provides reliable soft-hard rubber overmolding solutions for parts that need sealing or a comfortable touch.

Automotive Molds We Made

Automotive Emblem Mold

Door Armrest Mold

First Mold started with rapid tooling and expanded into making production molds a decade ago. Today, we have stood out in the highly competitive field of automotive molds, becoming a reliable high-quality component supplier working with automotive clients.

Automotive Prototype Tooling

Automotive Production Tooling

Automotive Mold Surface & Texture

Besides basic durability, a mold‘s surface decides the final part‘s look, feel, and performance. We’re good at many kinds of finishing technologies to fit strict automotive requirements—from scratch-hiding textures to high-gloss Class-A surfaces.

Texturing Process (Etching/Engraving)

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Texturing Process

Chemical etching to create textures

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Mold After Texturing

Mold with specified textures

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Final Automotive Part

Automotive components with matching textures

Most interior parts use texturing. Components like dashboards, door panels, and center consoles get better texture, less plastic look, no glare, and hidden parting lines. We have a standard texture library and custom texture development that fits your design needs, helping you get unique brand recognition.

Precision Polishing (Mirror Finish)

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precision polishing for vehicle mold step 1

Polishing Process

Mechanical mirror finish grinding

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precision polishing for vehicle mold step 2

Polished Mold

Mold surface with mirror finish

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precision polishing for vehicle mold step 3

Final Automotive Part

High-gloss vehicle part

Precision polishing is needed for high-gloss exterior parts (grilles, trim strips) and transparent optical parts (lamp covers, lenses). We always achieve various polish grades from matte (VDI 18) to super mirror finish (SPI A1). Our polished automotive parts have no flow marks , and meet the strictest appearance standards.

Performance Coating (Wear & Corrosion Resistance)

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Coating Process

DLC coating deposition

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coating process for automotive injection mold step 2

Coated Mold

Mold with protective coating

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coating process for automotive injection mold step 3

Final Automotive Parts

No special visual effect

By putting an ultra-thin special material (e.g., titanium nitride, diamond-like carbon DLC) on the mold surface, it can stop parts sticking. We can make wear resistance stronger (good for glass fiber reinforced materials), and increase thermal conductivity.

Consult Our Finishing Experts

Design impecável, definição precisa

Comece a construir o seu molde

What makes a good automotive injection mold?

First Mold's automotive molds have four key features: high precision requirements, long service life, high structural complexity, and strong customizability. Our company also has the technology, management, experience, and resources, so we can produce high-quality automotive molds more easily than others.

Design-Led Projects

First Mold believes that automotive mold design determines the quality foundation of the mold, while the processing technology decides the actual results.

Clear roles and responsibilities

First Mold uses the Amoeba management model, with clear responsibility at each stage. Our team works together efficiently, so the customer’s cost for automotive molds is only kept low, not high.

Hands-on experience

70% of First Mold’s employees have taken part in over 100 automotive mold projects, so they can prevent or solve all kinds of defects in automotive parts.

Mature supply chain resources

The company has built long-term, stable partnerships with high-quality raw material suppliers, surface treatment partners, and well-known hot runner brands. We provide one-stop service for automotive molds.

Automotive Mold Life Standards

Project Phase & Business Goal	Mold Life Design Standard	Typical Automotive Application
Concept Validation & Design Iteration	10,000 – 50,000 cycles	Parts for concept cars, design review prototypes, supporting rapid design changes.
Engineering Validation & Testing (DVP)	50.000 - 200.000 ciclos	Parts for durability, crash, environmental (thermal, corrosion) testing.
Pre-Production & Tooling Verification	200,000 – 500,000 cycles	Off-Tool Samples (OTS), line integration trials, low-volume pilot builds.
Mid-Volume Production Program	500,000 – 1 million cycles	Mid-cycle refresh components, specific parts for electric vehicles.
Full-Lifecycle High-Volume Production	1 million+ cycles	High-wear interior components, key exterior body panels for platform vehicles.

Note on Industry Standards: The above life cycles are engineered based on project requirements. For detailed information, please refer to our dedicated guide: Understanding SPI Mold Standards.

How Do We Extend Their Service Life?

We create and carry out specific steps to make your mold last longer, no matter what its its design cycle target is. To protect the money you spent on your tooling, we focus on preventing problems and making your molds last.

Error Prevention in the Mold Design Phase

We avoid potential risks by optimizing the structure, matching the characteristics of automotive parts, reserving maintenance space, and using defect databases and other methods.

Mold Post-Processing

We perform surface nitriding and apply anti-rust paint to the core moving parts of the mold. For special molds, PVD coating is adopted.

Regular Mold Maintenance

10000 cycles
ou
1 month

Disassemble the mold, check the wear condition of ejector pins, sprue bushings and sliders, and replace them in a timely manner; clean up sludge and residue inside the mold; reapply anti-rust grease.

50000 cycles
ou
3 months

Check the cavity size tolerance with a coordinate measuring machine; grind and repair guide pillars and guide bushes if the clearance is too large; re-perform nitriding treatment if the surface hardness decreases.

100000 cycles
ou
6 months

Fully disassemble the mold, inspect the mold base, cavity and core for fatigue cracks; replace aging seals (e.g. O-rings); carry out overall anti-rust treatment on the mold.

Your Auto Mold Project Workflow

If you pick a rapid prototype mold or a high-volume production tool, you go through the same six organized stages. The difference is in how much engineering and validation there is at every step and delivery time.

Etapa	Our Shared Actions	Automotive Rapid Tooling	Automotive Production Tooling
1. Upload 3D Files	You upload stp files; we make initial review.	Fast feedback on design for prototyping.	In-depth review for optimal manufacturability and cost.
2. Design & Engineer	We create mold designs; you review and approve.	Simple, efficient design focused on fast production	Full simulation and lifecycle design.
3. Build & Machine	We manufacture; you receive progress updates.	Strategic methods to minimize lead time.	High-tolerance machining and surface hardening.
4. Sample & Test	We conduct T1 trial; you evaluate parts.	Form & Fit: Verifying design, assembly, and basic function.	Performance & Data: Comprehensive testing and PPAP documentation for approval.
5. Refine & Approve	We adjust; you give final approval.	Quick Turnaround: Implementing essential modifications swiftly.	Process Lockdown: Finalizing all parameters and delivering full PPAP package.
6. Deliver & Support	We deliver the mold and provide support.	Smooth Handoff: Providing essential documentation and startup guidance.	Launch Partnership: Full documentation, spares, and ongoing production support.

Build Your Auto Mold Now

FAQ for Auto Molds Making

Para além dos ficheiros 3D, o que mais é necessário para a avaliação do molde?

Normalmente, os nossos engenheiros podem fornecer-lhe um orçamento exato com os desenhos 3D, as especificações dos materiais, a quantidade de produção e os requisitos de acabamento da superfície das peças para automóveis. Se tiver alguma necessidade especial, informe-nos prontamente - como se precisasse de uma sala limpa para a produção.

O que influencia o custo de um molde de injeção para a indústria automóvel?

O orçamento para moldes de injeção de automóveis abrange normalmente: honorários de conceção do molde (não mais de 5%), custos de material (35%–45%), honorários de processamento e fabrico (35%–45%), taxas de teste e modificação do molde (não mais do que 5%), além de taxas de gestão e lucro (10%–15%). Os nossos orçamentos são claros e válidos, sem quaisquer custos ocultos. Quaisquer taxas adicionais só serão aplicáveis se houver alterações ao contrato (por exemplo, alterações ECN da sua parte) e devem ser confirmadas por escrito com antecedência.

O que está incluído num orçamento para um molde automóvel? Existem custos ocultos?

Os principais custos num orçamento de moldes para a indústria automóvel incluem normalmente os custos dos materiais (aço, canais quentes, etc.), os honorários de conceção e engenharia, as despesas de maquinagem e fabrico, o tratamento térmico ou acabamento de superfícies, bem como a montagem e os testes de funcionamento. Não há custos ocultos com um fornecedor transparente como a First Mold — discriminamos claramente cada item do orçamento. No entanto, eventuais custos adicionais (por exemplo, alterações de projeto após a aprovação, entregas urgentes ou testes adicionais fora do âmbito acordado) serão sempre discutidos e aprovados por si previamente.

Quem é o titular do projeto do molde e dos direitos de propriedade intelectual?

Estes são, sem dúvida, os seus recursos personalizados exclusivos. Isto será claramente indicado no contrato do projeto. Após o pagamento do saldo final relativo ao molde, entregar-lhe-emos o conjunto completo de documentos de conceção. Note-se que os direitos de propriedade intelectual relativos à experiência geral de conceção, às bibliotecas de processos ou aos dados de peças padrão dos fornecedores utilizados na conceção do molde continuarão a pertencer aos respetivos proprietários originais.

Como é que se garante a precisão da maquinação dos núcleos de moldes para a indústria automóvel?

Before machining: we do pre-treatment on the mold materials, run DFM analysis on your 3D files, and get high-precision equipment ready for production.

During machining: core components use a step-by-step process of rough machining → semi-finishing → finish machining → precision finishing.

After machining: our company has high-precision testing tools like CMM (Coordinate Measuring Machine), 2D image measuring instrument, laser scanning detector, and height gauge to check the dimensions of key parts like mold cores and inserts.

É possível transformar um molde protótipo para peças automóveis num molde de produção?

But if you talk this through fully with us at the start of the project, we may leave room for reinforced structures and use upgradeable steel during the initial mold design. In this case, the rapid car mold might be upgraded to a production mold. Still, in most cases, our answer to this question will be no.

Qual é o vosso cálculo do prazo de entrega e qual é a vossa política em caso de atrasos no que diz respeito aos moldes para a indústria automóvel?

Lead time is figured out based on a scientific evaluation of mold complexity and clearly written into the contract. The main factors are: design hours, procurement time for long-lead materials (e.g., special steel), processing and assembly hours, and a buffer period for mold testing.

If the delay is on our side, we will let you know right away, start a catch-up plan, and may take on corresponding responsibilities as stated in the contract. If the delay comes from your changes (ECN) or slow approvals, the lead time will be pushed back—and we will update the plan promptly and keep you in the loop with full transparency.

What are the acceptance standards and failure process for car molds?

Acceptance standards are mainly based on the Mold Technical Agreement and Sample Approval Form signed by both sides. If your company hasn’t set up its own mold acceptance standards, you can refer to our article “Guia de Normas de Aceitação de Moldes de Injeção“.

How are costs and responsibilities handled if an automotive mold fails testing?

The key to dividing responsibilities is Root Cause Analysis (RCA):

Our responsibility: If failure is caused by mold design flaws, machining mistakes, or material problems, we will cover all the costs and hours needed for fixes.

Joint responsibility / Your responsibility: If failure is caused by unmanufacturable flaws in your product design (that weren’t pointed out during the DFM phase) or temporary change requests (ECN), the related costs will need to be discussed separately.