Создание надежного CNC machining electric baking pan prototype is a critical step in the product development cycle. It bridges the gap between design concepts and mass production, helping engineers test form, функция, и производительность. This article breaks down the entire process with clear comparisons, пошаговое руководство, and practical tools to ensure success.
1. Предварительная подготовка: The Foundation of Prototype Success
Before starting CNC machining, two core tasks—design drawing finalization и выбор материала—must be completed. These steps directly determine the prototype’s accuracy and usability.
1.1 Design Drawing Requirements
Accurate 3D design drawings are non-negotiable. They must detail every component to avoid machining errors. Below is a checklist of key elements to include:
- Curvature of upper/lower covers (терпимость: ± 0,1 мм)
- Размеры heating plate (длина, ширина, толщина)
- Position and shape of the handle (to ensure ergonomic fit)
- Locations of functional parts (НАПРИМЕР., temperature knobs, индикаторные лампы)
Почему это важно? Недостающая деталь (НАПРИМЕР., unmarked knob position) может заставить переделать, increasing costs by 20–30% and delaying timelines by 1–2 weeks.
1.2 Выбор материала: Plastic vs. Металл
Choosing the right material depends on your prototype’s purpose (appearance testing vs. performance testing). The table below compares the two most common options:
| Тип материала | Ключевые преимущества | Лучше всего для | Диапазон затрат (за кг) | Механизм |
| ABS Пластик | Бюджетный, Легко в машине, Хорошая поверхностная отделка | Appearance verification, basic structure testing | \(2- )5 | Отличный (Быстрая скорость резки) |
| Алюминиевый сплав | Высокая теплопроводность, сильный, коррозионная устойчивость | Heating plate testing, strength testing | \(8- )15 | Хороший (requires adjusted parameters) |
Пример: If you need to test how heat distributes in the baking pan, алюминиевый сплав Идеально. For a prototype to showcase the product’s look, ABS Пластик более рентабельно.
2. Процесс обработки с ЧПУ: From Setup to Finishing
The CNC machining phase turns raw materials into prototype components. Это следует за линейным рабочим процессом: machine setup → clamping → rough machining → finishing.
2.1 Machine Setup and Programming
Первый, select the right CNC equipment and program it for precision.
- Machine Selection:
- Небольшие прототипы (размер <30см): Use a small CNC milling machine (НАПРИМЕР., Haas TM-1).
- Большие прототипы (size >50cm): Choose a large machining center (НАПРИМЕР., Mazak VTC-800/30SR).
- CAM Software Programming:
- Import 3D design drawings into software like SolidWorks CAM or Mastercam.
- Set machining parameters (варьируется в зависимости от материала):
- For ABS Plastic: Cutting speed = 1500–2000 rpm; Feed rate = 500–800 mm/min.
- For Aluminum Alloy: Cutting speed = 800–1200 rpm; Скорость подачи = 300–500 мм/мин..
- Tool Path Planning:
- Грубая: Use a large tool (НАПРИМЕР., 10MM End Mill) to remove 80–90% of excess material.
- Отделка: Use a small tool (НАПРИМЕР., 3MM End Mill) Чтобы обеспечить плавность поверхности (Раствор <0.8мкм).
2.2 Зажим, Грубая обработка, and Finishing
После запрограммирования, the machining begins. Here’s what to focus on at each step:
| Шаг | Цель | Ключевые действия | Common Issues to Avoid |
| Зажим | Secure material to the machine table | – Use flat pliers for block ABS plastic.- Use indexing heads for cylindrical metal. | Loose clamping (causes workpiece movement). |
| Грубая обработка | Shape the workpiece (initial form) | – Cut at high feed rates to save time.- Monitor for vibration or excessive cutting force. | Overheating (use coolant for metal). |
| Отделка | Improve accuracy and surface quality | – Use small cutting depths (0.1-0,3 мм).- Focus on appearance surfaces (НАПРИМЕР., upper cover). | Царапины (use sharp tools). |
3. Пост-обработка: Perfecting the Prototype
После обработки, post-processing removes flaws and enhances the prototype’s look and performance.
3.1 Burr Removal
Burrs (острые края) are common after machining. Use these tools based on burr size:
- Small burrs (edge <0.5мм): Наждачная бумага (400–600 Грит) for gentle sanding.
- Large burrs (edge >1mm): File (flat or round) первый, then sand with 200–400 grit sandpaper.
Тематическое исследование: After machining an electric baking pan handle, burrs at the edges could scratch users. Removing them takes 5–10 minutes and ensures safety.
3.2 Варианты обработки поверхности
Choose a treatment based on material and prototype goals:
- Oil Spraying (for ABS Plastic):
- Use matte or glossy paint (НАПРИМЕР., AkzoNobel industrial paint).
- Apply in a dust-free room to avoid particles in the coating.
- Горячая штамповка (for logos/instructions):
- Stamp brand names or “ON/OFF” labels onto the surface.
- Преимущества: Устойчивость к износу (длится 1000+ Тесты втирания).
- Гальванизация (for Aluminum Alloy):
- Plate with nickel or chrome to boost corrosion resistance.
- Вариант использования: Electroplated heating plates resist oxidation for 2+ годы.
4. Assembly and Inspection: Обеспечение качества прототипа
The final steps—сборка и осмотр—confirm the prototype meets design standards.
4.1 Процесс сборки
Assemble components (upper cover, heating plate, ручка) in this order:
- Attach the heating plate to the lower cover (use M3 screws).
- Install the hinge between upper and lower covers (test for smooth rotation).
- Fix the handle to the upper cover (ensure it can support 5kg weight).
Кончик: Use a torque wrench to tighten screws (torque = 1.5–2.0 N·m) to avoid damage.
4.2 Контрольный список проверок
Test the prototype in three key areas:
| Inspection Type | Инструменты используются | Критерии прохождения |
| Появление | Визуальная проверка, блескомер | – Uniform paint color (no spots).- Clear hot-stamped logos. |
| Функция | Мультиметр (for heating tests) | – Temperature knob turns smoothly.- Heating plate simulates 50–250°C (if functional). |
| Точность размеров | Суппорты, микрометры | – Heating plate size: ±0.05mm.- Cover thickness: ± 0,1 мм. |
Перспектива Yigu Technology
В Yigu Technology, Мы верим CNC machining electric baking pan prototypes are more than just “test models”—they are a way to reduce risks before mass production. Наша команда расставляет приоритеты две вещи: material matching (НАПРИМЕР., using food-grade aluminum alloy for heating plates) и точная обработка (терпимость <0.03мм). We’ve found that investing in high-quality prototypes cuts 15–20% of post-production issues. Для клиентов, this means faster time-to-market and lower costs. Whether you need an appearance prototype or a functional one, we tailor the process to your goals—no shortcuts, Просто надежные результаты.
Часто задаваемые вопросы
- Q.: How long does it take to make a CNC machining electric baking pan prototype?
А: Typically 5–7 days. Это включает в себя 1 day for preparation, 2–3 days for machining, 1 день для постобработки, и 1 day for assembly/inspection.
- Q.: Can I use other materials besides ABS plastic and aluminum alloy?
А: Да. Например, ПК Пластик (теплостойкий) is used for high-temperature prototypes, и нержавеющая сталь (сильнее) is for parts needing extra durability. Однако, these materials cost 30–50% more than ABS or aluminum.
- Q.: What if the prototype fails the dimensional accuracy test?
А: Первый, check the CAM program and clamping. If the issue is machining parameters, adjust the cutting speed/feed rate and re-machine the part. Most reworks take 1–2 days and add 10–15% to the cost (avoidable with careful setup).